Subtract 45/42 from 35/54
1st number: 35/54, 2nd number: 1 3/42
35/54 - 45/42 is -80/189.
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,
35/54 = 35 × 7/54 × 7 = 245/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
45/42 = 45 × 9/42 × 9 = 405/378 - Subtract the two like fractions:
245/378 - 405/378 = 245 - 405/378 = -160/378 - After reducing the fraction, the answer is -80/189
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