Subtract 42/24 from 5/42, Solve 5/42

Subtract 42/24 from 5/42

1^st number: 5/42, 2^nd number: 1 18/24

5/42 - 42/24 is -137/84.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 42 × 4 = 168,
5/42 = 5 × 4/42 × 4 = 20/168
Likewise, for the 2nd fraction, since 24 × 7 = 168,
42/24 = 42 × 7/24 × 7 = 294/168
Subtract the two like fractions:
20/168 - 294/168 = 20 - 294/168 = -274/168
After reducing the fraction, the answer is -137/84

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