Solution: 30.72 as a fraction is 768/25
Methods
Converting 30.72 to a fraction, Step-by-Step
Step 1:
The first step to converting 30.72 to a fraction is to re-write 30.72 in the form p/q where p and q both are positive integers. To start with, 30.72 can be written as simply 30.72/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 30.72, which in this case is 2. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 30.72/1 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 30.72/1 each by 100:
30.72
×
100
1
×
100
=
3072
100
\frac{30.72 × 100}{1 × 100} = \frac{3072}{100}
1 × 100 30.72 × 100 = 100 3072
Step 3:
Now the last step is to simplify the fraction (if possible) by finding similar factors and cancelling them out:
3072
100
=
768
25
\frac{3072}{100} = \frac{768}{25}
100 3072 = 25 768
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