Subtract 63/42 from 36/8, Solve 4 4/8

Subtract 63/42 from 36/8

1^st number: 4 4/8, 2^nd number: 1 21/42

36/8 - 63/42 is 3/1.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 42 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 8 × 21 = 168,
36/8 = 36 × 21/8 × 21 = 756/168
Likewise, for the 2nd fraction, since 42 × 4 = 168,
63/42 = 63 × 4/42 × 4 = 252/168
Subtract the two like fractions:
756/168 - 252/168 = 756 - 252/168 = 504/168
After reducing the fraction, the answer is 3/1

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