Subtract 72/18 from 7/9
1st number: 7/9, 2nd number: 4 0/18
7/9 - 72/18 is -29/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 9 × 2 = 18,
7/9 = 7 × 2/9 × 2 = 14/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
72/18 = 72 × 1/18 × 1 = 72/18 - Subtract the two like fractions:
14/18 - 72/18 = 14 - 72/18 = -58/18 - After reducing the fraction, the answer is -29/9
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