Subtract 63/64 from 21/5
1st number: 4 1/5, 2nd number: 63/64
21/5 - 63/64 is 1029/320.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 64 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 5 × 64 = 320,
21/5 = 21 × 64/5 × 64 = 1344/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
63/64 = 63 × 5/64 × 5 = 315/320 - Subtract the two like fractions:
1344/320 - 315/320 = 1344 - 315/320 = 1029/320 - In mixed form: 369/320
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