Subtract 96/18 from 3/42, Solve 3/42

Subtract 96/18 from 3/42

1^st number: 3/42, 2^nd number: 5 6/18

3/42 - 96/18 is -221/42.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 42 × 3 = 126,
3/42 = 3 × 3/42 × 3 = 9/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
96/18 = 96 × 7/18 × 7 = 672/126
Subtract the two like fractions:
9/126 - 672/126 = 9 - 672/126 = -663/126
After reducing the fraction, the answer is -221/42

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