Subtract 54/60 from 21/8
1st number: 2 5/8, 2nd number: 54/60
21/8 - 54/60 is 69/40.
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,
21/8 = 21 × 15/8 × 15 = 315/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
54/60 = 54 × 2/60 × 2 = 108/120 - Subtract the two like fractions:
315/120 - 108/120 = 315 - 108/120 = 207/120 - After reducing the fraction, the answer is 69/40
- In mixed form: 129/40
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