Subtract 54/72 from 10/80
10/80 - 54/72 is -5/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 72 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
10/80 = 10 × 9/80 × 9 = 90/720 - Likewise, for the 2nd fraction, since 72 × 10 = 720,
54/72 = 54 × 10/72 × 10 = 540/720 - Subtract the two like fractions:
90/720 - 540/720 = 90 - 540/720 = -450/720 - After reducing the fraction, the answer is -5/8
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