Subtract 56/64 from 40/42
40/42 - 56/64 is 13/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 64 is 1344
Next, find the equivalent fraction of both fractional numbers with denominator 1344 - For the 1st fraction, since 42 × 32 = 1344,
40/42 = 40 × 32/42 × 32 = 1280/1344 - Likewise, for the 2nd fraction, since 64 × 21 = 1344,
56/64 = 56 × 21/64 × 21 = 1176/1344 - Subtract the two like fractions:
1280/1344 - 1176/1344 = 1280 - 1176/1344 = 104/1344 - After reducing the fraction, the answer is 13/168
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