Subtract 21/63 from 75/42, Solve 1 33/42

Subtract 21/63 from 75/42

1^st number: 1 33/42, 2^nd number: 21/63

75/42 - 21/63 is 61/42.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 63 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 42 × 3 = 126,
75/42 = 75 × 3/42 × 3 = 225/126
Likewise, for the 2nd fraction, since 63 × 2 = 126,
21/63 = 21 × 2/63 × 2 = 42/126
Subtract the two like fractions:
225/126 - 42/126 = 225 - 42/126 = 183/126
After reducing the fraction, the answer is 61/42
In mixed form: 119/42

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