Subtract 49/32 from 70/42, Solve 1 28/42

Subtract 49/32 from 70/42

1^st number: 1 28/42, 2^nd number: 1 17/32

70/42 - 49/32 is 13/96.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 32 is 672

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 42 × 16 = 672,
70/42 = 70 × 16/42 × 16 = 1120/672
Likewise, for the 2nd fraction, since 32 × 21 = 672,
49/32 = 49 × 21/32 × 21 = 1029/672
Subtract the two like fractions:
1120/672 - 1029/672 = 1120 - 1029/672 = 91/672
After reducing the fraction, the answer is 13/96

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