Subtract 18/64 from 21/14
1st number: 1 7/14, 2nd number: 18/64
21/14 - 18/64 is 39/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 64 is 448
Next, find the equivalent fraction of both fractional numbers with denominator 448 - For the 1st fraction, since 14 × 32 = 448,
21/14 = 21 × 32/14 × 32 = 672/448 - Likewise, for the 2nd fraction, since 64 × 7 = 448,
18/64 = 18 × 7/64 × 7 = 126/448 - Subtract the two like fractions:
672/448 - 126/448 = 672 - 126/448 = 546/448 - After reducing the fraction, the answer is 39/32
- In mixed form: 17/32
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