Subtract 21/32 from 84/42
1st number: 2 0/42, 2nd number: 21/32
84/42 - 21/32 is 43/32.
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,
84/42 = 84 × 16/42 × 16 = 1344/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
21/32 = 21 × 21/32 × 21 = 441/672 - Subtract the two like fractions:
1344/672 - 441/672 = 1344 - 441/672 = 903/672 - After reducing the fraction, the answer is 43/32
- In mixed form: 111/32
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