Subtract 28/7 from 63/2, Solve 31 1/2

Subtract 28/7 from 63/2

1^st number: 31 1/2, 2^nd number: 4 0/7

63/2 - 28/7 is 55/2.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14

Next, find the equivalent fraction of both fractional numbers with denominator 14
For the 1st fraction, since 2 × 7 = 14,
63/2 = 63 × 7/2 × 7 = 441/14
Likewise, for the 2nd fraction, since 7 × 2 = 14,
28/7 = 28 × 2/7 × 2 = 56/14
Subtract the two like fractions:
441/14 - 56/14 = 441 - 56/14 = 385/14
After reducing the fraction, the answer is 55/2
In mixed form: 271/2

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