Subtract 9/80 from 12/72
12/72 - 9/80 is 13/240.
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,
12/72 = 12 × 10/72 × 10 = 120/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
9/80 = 9 × 9/80 × 9 = 81/720 - Subtract the two like fractions:
120/720 - 81/720 = 120 - 81/720 = 39/720 - After reducing the fraction, the answer is 13/240
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