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Math Tutor's Solution: 15.78 as a fraction is 789/50
Methods
Converting 15.78 to a fraction, Step-by-Step from a Math Tutor
Step 1:
The first step to converting 15.78 to a fraction is to re-write 15.78 in the form p/q where p and q both are positive integers. To start with, 15.78 can be written as simply 15.78/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 15.78, which in this case is 2. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 15.78/1 each by 10 to the power of that many digits. For instance, for 0.45, there are 2 fractional digits so we would multiply by 100; or for 0.324, since there are 3 fractional digits, we would multiply by 1000. So, in this case, we will multiply the numerator and denominator of 15.78/1 each by 100:
Step 3:
Now the last step is to simplify the fraction (if possible) by finding similar factors and cancelling them out:
Math Tutor Suggests: Become a Pro at Converting to Fractions
Become a pro at converting decimals or percentages to fractions by exploring some examples from our math tutors, like the ones below:
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