Subtract 81/84 from 42/32
1st number: 1 10/32, 2nd number: 81/84
42/32 - 81/84 is 39/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 84 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 32 × 21 = 672,
42/32 = 42 × 21/32 × 21 = 882/672 - Likewise, for the 2nd fraction, since 84 × 8 = 672,
81/84 = 81 × 8/84 × 8 = 648/672 - Subtract the two like fractions:
882/672 - 648/672 = 882 - 648/672 = 234/672 - After reducing the fraction, the answer is 39/112
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