Subtract 27/20 from 42/14, Solve 3 0/14

Subtract 27/20 from 42/14

1^st number: 3 0/14, 2^nd number: 1 7/20

42/14 - 27/20 is 33/20.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 20 is 140

Next, find the equivalent fraction of both fractional numbers with denominator 140
For the 1st fraction, since 14 × 10 = 140,
42/14 = 42 × 10/14 × 10 = 420/140
Likewise, for the 2nd fraction, since 20 × 7 = 140,
27/20 = 27 × 7/20 × 7 = 189/140
Subtract the two like fractions:
420/140 - 189/140 = 420 - 189/140 = 231/140
After reducing the fraction, the answer is 33/20
In mixed form: 113/20

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