Subtract 21/5 from 3/64
1st number: 3/64, 2nd number: 4 1/5
3/64 - 21/5 is -1329/320.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 5 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 64 × 5 = 320,
3/64 = 3 × 5/64 × 5 = 15/320 - Likewise, for the 2nd fraction, since 5 × 64 = 320,
21/5 = 21 × 64/5 × 64 = 1344/320 - Subtract the two like fractions:
15/320 - 1344/320 = 15 - 1344/320 = -1329/320
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