Subtract 18/84 from 42/14, Solve 3 0/14

Subtract 18/84 from 42/14

1^st number: 3 0/14, 2^nd number: 18/84

42/14 - 18/84 is 39/14.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 84 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 14 × 6 = 84,
42/14 = 42 × 6/14 × 6 = 252/84
Likewise, for the 2nd fraction, since 84 × 1 = 84,
18/84 = 18 × 1/84 × 1 = 18/84
Subtract the two like fractions:
252/84 - 18/84 = 252 - 18/84 = 234/84
After reducing the fraction, the answer is 39/14
In mixed form: 211/14

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