# Fraction to decimal calculator betting line

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I learned it like I learned my times table at school. It comes very naturally after you've practiced it a few times. Good luck, and enjoy your new-found, odds compiling knowledge. Understand Betting Odds An essential tool in ensuring you are getting value with your bets is too fully understand Betting Odds.

It is also important not to mix this up with decimal odds which I see happening time and time again. Spot the Value in Bookmakers Prices Knowing how to convert odds to probability, or probability to odds can make spotting value prices and bookmaker mistakes EASY! The bookies all construct their books based on percentage probability and understand it fully. They can convert a percentage to fractional or decimal odds without a moment's hesitation; if we as punters aim to get one over on our satchel filling friends, we need to be able to do the same.

I'll start with the easiest example I can think of linked to sport. How it works The Maths Behind the Odds Converter Odds conversion calculations vary depending on the odds formats in question. Fractional to Decimal Odds To convert fractional odds to decimal odds, you need to turn the fraction into decimal form and then add 1.

To convert a fraction to a decimal, you simply divide the numerator the number left of the divider by the denominator the number right of the divider. This means positioning the decimal number as the numerator and 1 as the denominator. You then multiply the top and bottom numbers by ten until there are no decimal places left.

For example, to convert odds of 1. Converting American odds to fractional odds requires the reverse calculations. For positive odds, this means multiplying the odds by , converting the answer to a fraction and then reducing the fraction to its simplest form.

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Decimal - 1 divided by the percentage divided by e. Fraction - 1 divided by the percentage divided by minus 1 e. American: Positive odds - divided by the percentage divided by minus e. Negative odds - The probability divided by 1 minus the probability divided by then multiply by -1 to convert into a negative e.

How do you convert american odds to decimal? Positive odds - 1 plus the american odds divided by e. Negative odds - 1 minus divided by the american odds e. How do you convert american odds to fractional? Positive odds - The american odds divided by e.

Negative odds - Minus divided by the american odds e. How do you convert fractional odds to decimal? Add 1 to the fractional representation e. How do you convert fractional odds to american? Positive american odds - The fractional value multiplied by e. Negative american odds - Negative divided by the fractional odds e. How do you convert decimal odds to fractional? Subtract 1 from the decimal representation e. How do you convert decimal odds to american? Positive american odds - The decimal value minus one multiplied by e.

Converting American odds to fractional odds requires the reverse calculations. For positive odds, this means multiplying the odds by , converting the answer to a fraction and then reducing the fraction to its simplest form. To convert negative US odds, you divide by the odds, turn the decimal into a fraction and then reduce to its simplest form.

For decimal odds of 2. So for decimal odds of 3. So the calculation for decimal odds of 1. So for positive odds, you divide by and plus 1, and for negative US odds, you disregard the negative sign, divide by and then add 1. The implied probability provides the simplest reflection of how likely a bookie believes a particular event is to happen.

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Converting a fraction to a decimal with a calculator## Consider, what betting directory odds calculator congratulate, remarkable

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More betting tools: Parlay Calculator Understanding betting odds The way sports betting odds are presented can differ between American, Fractional, and Decimal. While they all mean the same thing, understanding how they work with your wager can be tricky.

Use our betting odds and moneyline calculator tool above to convert these odds and learn more about them below. Bets with higher implied probability are given a higher negative value. Bets with lower implied probability are given a positive value. Decimal odds explained Decimal odds are the preferred variation for most countries outside of the U. Instead of using positive and negative values or fractional equations, decimal odds display a simple value that you multiply your bet amount by to calculate your profit money won and overall return profit and original risk amount.

Fractional odds explained Fractional odds are most common in horse racing and futures markets. You can also define your odds conversion to a specific bet amount to see your expected profit if that wager should win. Odds with lower implied probability have larger risk and therefore pay out more compared to odds with higher implied probability and lower risk.

FAQs How do you convert American odds to decimal? How do you convert American odds to fractional? How do you convert decimal odds to American? For decimal odds of 2. The implied probability of this spread bet winning would be Let's use the above bet of for both outcomes on a NFL spread bet.

We know that both outcomes have an implied probability of If that same outcome has a true probability of This seems easy, but how do you find true odds? Essentially, true odds are subjective. However, one person can calculate true probability by using predictive models. This is where handicapping comes into play. Example Game: Tennessee Titans vs. Bills game at even odds. By using our odds calculator, you can calculate the implied probability of either team winning.

Since the same odds are offered for the Bills to win, the implied probability for the Bills to win are What can you do with this information? If you are able to calculate true probability, you can use those odds to make an informed decision on who to bet on. It is important to note that if your true probability is higher than the implied probability that a sportsbook is giving you, then that is a valuable bet.

Creating an accurate predictive model can take years to perfect. This is not something that everyone can take advantage of, but if you are looking for a place to start you can check out the resources we have on our betting education page.