Subtract 3/9 from 3/72
3/72 - 3/9 is -7/24.
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,
3/72 = 3 × 1/72 × 1 = 3/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
3/9 = 3 × 8/9 × 8 = 24/72 - Subtract the two like fractions:
3/72 - 24/72 = 3 - 24/72 = -21/72 - After reducing the fraction, the answer is -7/24
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