Subtract 20/64 from 7/9
7/9 - 20/64 is 67/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 64 is 576
Next, find the equivalent fraction of both fractional numbers with denominator 576 - For the 1st fraction, since 9 × 64 = 576,
7/9 = 7 × 64/9 × 64 = 448/576 - Likewise, for the 2nd fraction, since 64 × 9 = 576,
20/64 = 20 × 9/64 × 9 = 180/576 - Subtract the two like fractions:
448/576 - 180/576 = 448 - 180/576 = 268/576 - After reducing the fraction, the answer is 67/144
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