Subtract 64/63 from 21/8
1st number: 2 5/8, 2nd number: 1 1/63
21/8 - 64/63 is 811/504.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 8 × 63 = 504,
21/8 = 21 × 63/8 × 63 = 1323/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
64/63 = 64 × 8/63 × 8 = 512/504 - Subtract the two like fractions:
1323/504 - 512/504 = 1323 - 512/504 = 811/504 - In mixed form: 1307/504
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