Subtract 9/12 from 75/42, Solve 1 33/42

Subtract 9/12 from 75/42

1^st number: 1 33/42, 2^nd number: 9/12

75/42 - 9/12 is 29/28.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 42 × 2 = 84,
75/42 = 75 × 2/42 × 2 = 150/84
Likewise, for the 2nd fraction, since 12 × 7 = 84,
9/12 = 9 × 7/12 × 7 = 63/84
Subtract the two like fractions:
150/84 - 63/84 = 150 - 63/84 = 87/84
After reducing the fraction, the answer is 29/28
In mixed form: 11/28

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