Subtract 21/64 from 9/7
1st number: 1 2/7, 2nd number: 21/64
9/7 - 21/64 is 429/448.
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,
9/7 = 9 × 64/7 × 64 = 576/448 - Likewise, for the 2nd fraction, since 64 × 7 = 448,
21/64 = 21 × 7/64 × 7 = 147/448 - Subtract the two like fractions:
576/448 - 147/448 = 576 - 147/448 = 429/448
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