Subtract 20/64 from 4/7
4/7 - 20/64 is 29/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 64 is 448
Next, find the equivalent fraction of both fractional numbers with denominator 448 - For the 1st fraction, since 7 × 64 = 448,
4/7 = 4 × 64/7 × 64 = 256/448 - Likewise, for the 2nd fraction, since 64 × 7 = 448,
20/64 = 20 × 7/64 × 7 = 140/448 - Subtract the two like fractions:
256/448 - 140/448 = 256 - 140/448 = 116/448 - After reducing the fraction, the answer is 29/112
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