Subtract 21/8 from 15/60
1st number: 15/60, 2nd number: 2 5/8
15/60 - 21/8 is -19/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 60 × 2 = 120,
15/60 = 15 × 2/60 × 2 = 30/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
21/8 = 21 × 15/8 × 15 = 315/120 - Subtract the two like fractions:
30/120 - 315/120 = 30 - 315/120 = -285/120 - After reducing the fraction, the answer is -19/8
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