Here we will convert the number 31.87 to a fraction.
31.87 is the same as 31.87/1, because 31.87 divided by 1 is 31.87.
Therefore, we can multiply both the numerator and denominator in 31.87/1 by 100 to get rid of the decimal point and make it into a fraction as follows:
31.87/1 x 100/100 = 3187/100
Then, we simplify the fraction if necessary and we have our answer:
31.87 = 31 87/100
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