Subtract 21/32 from 70/42
1st number: 1 28/42, 2nd number: 21/32
70/42 - 21/32 is 97/96.
Steps for subtracting fractions
- 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,
21/32 = 21 × 21/32 × 21 = 441/672 - Subtract the two like fractions:
1120/672 - 441/672 = 1120 - 441/672 = 679/672 - After reducing the fraction, the answer is 97/96
- In mixed form: 11/96
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