Subtract 8/15 from 21/8
1st number: 2 5/8, 2nd number: 8/15
21/8 - 8/15 is 251/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
21/8 = 21 × 15/8 × 15 = 315/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
8/15 = 8 × 8/15 × 8 = 64/120 - Subtract the two like fractions:
315/120 - 64/120 = 315 - 64/120 = 251/120 - In mixed form: 211/120
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