Subtract 63/4 from 54/80
1st number: 54/80, 2nd number: 15 3/4
54/80 - 63/4 is -603/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 4 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
54/80 = 54 × 1/80 × 1 = 54/80 - Likewise, for the 2nd fraction, since 4 × 20 = 80,
63/4 = 63 × 20/4 × 20 = 1260/80 - Subtract the two like fractions:
54/80 - 1260/80 = 54 - 1260/80 = -1206/80 - After reducing the fraction, the answer is -603/40
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