Subtract 9/64 from 20/28
20/28 - 9/64 is 257/448.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 64 is 448
Next, find the equivalent fraction of both fractional numbers with denominator 448 - For the 1st fraction, since 28 × 16 = 448,
20/28 = 20 × 16/28 × 16 = 320/448 - Likewise, for the 2nd fraction, since 64 × 7 = 448,
9/64 = 9 × 7/64 × 7 = 63/448 - Subtract the two like fractions:
320/448 - 63/448 = 320 - 63/448 = 257/448
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