Subtract 5/15 from 42/2, Solve 21 0/2

Subtract 5/15 from 42/2

1^st number: 21 0/2, 2^nd number: 5/15

42/2 - 5/15 is 62/3.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 15 is 30

Next, find the equivalent fraction of both fractional numbers with denominator 30
For the 1st fraction, since 2 × 15 = 30,
42/2 = 42 × 15/2 × 15 = 630/30
Likewise, for the 2nd fraction, since 15 × 2 = 30,
5/15 = 5 × 2/15 × 2 = 10/30
Subtract the two like fractions:
630/30 - 10/30 = 630 - 10/30 = 620/30
After reducing the fraction, the answer is 62/3
In mixed form: 202/3

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