Subtract 27/80 from 10/72
10/72 - 27/80 is -143/720.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 72 × 10 = 720,
10/72 = 10 × 10/72 × 10 = 100/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
27/80 = 27 × 9/80 × 9 = 243/720 - Subtract the two like fractions:
100/720 - 243/720 = 100 - 243/720 = -143/720
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