Subtract 20/64 from 7/18
7/18 - 20/64 is 11/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 64 is 576
Next, find the equivalent fraction of both fractional numbers with denominator 576 - For the 1st fraction, since 18 × 32 = 576,
7/18 = 7 × 32/18 × 32 = 224/576 - Likewise, for the 2nd fraction, since 64 × 9 = 576,
20/64 = 20 × 9/64 × 9 = 180/576 - Subtract the two like fractions:
224/576 - 180/576 = 224 - 180/576 = 44/576 - After reducing the fraction, the answer is 11/144
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