Subtract 42/20 from 24/14, Solve 1 10/14

Subtract 42/20 from 24/14

1^st number: 1 10/14, 2^nd number: 2 2/20

24/14 - 42/20 is -27/70.

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,
24/14 = 24 × 10/14 × 10 = 240/140
Likewise, for the 2nd fraction, since 20 × 7 = 140,
42/20 = 42 × 7/20 × 7 = 294/140
Subtract the two like fractions:
240/140 - 294/140 = 240 - 294/140 = -54/140
After reducing the fraction, the answer is -27/70

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