Subtract 21/60 from 9/8
1st number: 1 1/8, 2nd number: 21/60
9/8 - 21/60 is 31/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
9/8 = 9 × 15/8 × 15 = 135/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
21/60 = 21 × 2/60 × 2 = 42/120 - Subtract the two like fractions:
135/120 - 42/120 = 135 - 42/120 = 93/120 - After reducing the fraction, the answer is 31/40
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