Subtract 1/21 from 42/14, Solve 3 0/14

Subtract 1/21 from 42/14

1^st number: 3 0/14, 2^nd number: 1/21

42/14 - 1/21 is 62/21.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 14 × 3 = 42,
42/14 = 42 × 3/14 × 3 = 126/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
1/21 = 1 × 2/21 × 2 = 2/42
Subtract the two like fractions:
126/42 - 2/42 = 126 - 2/42 = 124/42
After reducing the fraction, the answer is 62/21
In mixed form: 220/21

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