Subtract 5/64 from 21/15
1st number: 1 6/15, 2nd number: 5/64
21/15 - 5/64 is 423/320.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 64 is 960
Next, find the equivalent fraction of both fractional numbers with denominator 960 - For the 1st fraction, since 15 × 64 = 960,
21/15 = 21 × 64/15 × 64 = 1344/960 - Likewise, for the 2nd fraction, since 64 × 15 = 960,
5/64 = 5 × 15/64 × 15 = 75/960 - Subtract the two like fractions:
1344/960 - 75/960 = 1344 - 75/960 = 1269/960 - After reducing the fraction, the answer is 423/320
- In mixed form: 1103/320
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