Subtract 80/42 from 36/54
1st number: 36/54, 2nd number: 1 38/42
36/54 - 80/42 is -26/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
36/54 = 36 × 7/54 × 7 = 252/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
80/42 = 80 × 9/42 × 9 = 720/378 - Subtract the two like fractions:
252/378 - 720/378 = 252 - 720/378 = -468/378 - After reducing the fraction, the answer is -26/21
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