Subtract 42/24 from 3/28, Solve 3/28

Subtract 42/24 from 3/28

1^st number: 3/28, 2^nd number: 1 18/24

3/28 - 42/24 is -23/14.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 24 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 28 × 6 = 168,
3/28 = 3 × 6/28 × 6 = 18/168
Likewise, for the 2nd fraction, since 24 × 7 = 168,
42/24 = 42 × 7/24 × 7 = 294/168
Subtract the two like fractions:
18/168 - 294/168 = 18 - 294/168 = -276/168
After reducing the fraction, the answer is -23/14

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