Subtract 72/27 from 8/18
1st number: 8/18, 2nd number: 2 18/27
8/18 - 72/27 is -20/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
8/18 = 8 × 3/18 × 3 = 24/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
72/27 = 72 × 2/27 × 2 = 144/54 - Subtract the two like fractions:
24/54 - 144/54 = 24 - 144/54 = -120/54 - After reducing the fraction, the answer is -20/9
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