Subtract 28/24 from 8/42, Solve 8/42

Subtract 28/24 from 8/42

1^st number: 8/42, 2^nd number: 1 4/24

8/42 - 28/24 is -41/42.

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,
8/42 = 8 × 4/42 × 4 = 32/168
Likewise, for the 2nd fraction, since 24 × 7 = 168,
28/24 = 28 × 7/24 × 7 = 196/168
Subtract the two like fractions:
32/168 - 196/168 = 32 - 196/168 = -164/168
After reducing the fraction, the answer is -41/42

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