Subtract 54/24 from 21/80
1st number: 21/80, 2nd number: 2 6/24
21/80 - 54/24 is -159/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 24 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
21/80 = 21 × 3/80 × 3 = 63/240 - Likewise, for the 2nd fraction, since 24 × 10 = 240,
54/24 = 54 × 10/24 × 10 = 540/240 - Subtract the two like fractions:
63/240 - 540/240 = 63 - 540/240 = -477/240 - After reducing the fraction, the answer is -159/80
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