Subtract 28/15 from 54/40
1st number: 1 14/40, 2nd number: 1 13/15
54/40 - 28/15 is -31/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
54/40 = 54 × 3/40 × 3 = 162/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
28/15 = 28 × 8/15 × 8 = 224/120 - Subtract the two like fractions:
162/120 - 224/120 = 162 - 224/120 = -62/120 - After reducing the fraction, the answer is -31/60
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