Subtract 3/9 from 7/72
772 - 39 is -1772.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
772 = 7 × 172 × 1 = 772 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
39 = 3 × 89 × 8 = 2472 - Subtract the two like fractions:
772 - 2472 = 7 - 2472 = -1772
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