Subtract 54/15 from 5/4
1st number: 1 1/4, 2nd number: 3 9/15
5/4 - 54/15 is -47/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
5/4 = 5 × 15/4 × 15 = 75/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
54/15 = 54 × 4/15 × 4 = 216/60 - Subtract the two like fractions:
75/60 - 216/60 = 75 - 216/60 = -141/60 - After reducing the fraction, the answer is -47/20
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