Subtract 70/7 from 27/2, Solve 13 1/2

Subtract 70/7 from 27/2

1^st number: 13 1/2, 2^nd number: 10 0/7

27/2 - 70/7 is 7/2.

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,
27/2 = 27 × 7/2 × 7 = 189/14
Likewise, for the 2nd fraction, since 7 × 2 = 14,
70/7 = 70 × 2/7 × 2 = 140/14
Subtract the two like fractions:
189/14 - 140/14 = 189 - 140/14 = 49/14
After reducing the fraction, the answer is 7/2
In mixed form: 31/2

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