Subtract 5/42 from 27/2, Solve 13 1/2

Subtract 5/42 from 27/2

1^st number: 13 1/2, 2^nd number: 5/42

27/2 - 5/42 is 281/21.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 2 × 21 = 42,
27/2 = 27 × 21/2 × 21 = 567/42
Likewise, for the 2nd fraction, since 42 × 1 = 42,
5/42 = 5 × 1/42 × 1 = 5/42
Subtract the two like fractions:
567/42 - 5/42 = 567 - 5/42 = 562/42
After reducing the fraction, the answer is 281/21
In mixed form: 138/21

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