Subtract 21/42 from 30/14, Solve 2 2/14

Subtract 21/42 from 30/14

1^st number: 2 2/14, 2^nd number: 21/42

30/14 - 21/42 is 23/14.

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

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 14 × 3 = 42,
30/14 = 30 × 3/14 × 3 = 90/42
Likewise, for the 2nd fraction, since 42 × 1 = 42,
21/42 = 21 × 1/42 × 1 = 21/42
Subtract the two like fractions:
90/42 - 21/42 = 90 - 21/42 = 69/42
After reducing the fraction, the answer is 23/14
In mixed form: 19/14

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