Subtract 21/15 from 42/6, Solve 7 0/6

Subtract 21/15 from 42/6

1^st number: 7 0/6, 2^nd number: 1 6/15

42/6 - 21/15 is 28/5.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 15 is 30

Next, find the equivalent fraction of both fractional numbers with denominator 30
For the 1st fraction, since 6 × 5 = 30,
42/6 = 42 × 5/6 × 5 = 210/30
Likewise, for the 2nd fraction, since 15 × 2 = 30,
21/15 = 21 × 2/15 × 2 = 42/30
Subtract the two like fractions:
210/30 - 42/30 = 210 - 42/30 = 168/30
After reducing the fraction, the answer is 28/5
In mixed form: 53/5

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