Subtract 20/14 from 45/54
1st number: 45/54, 2nd number: 1 6/14
45/54 - 20/14 is -25/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 14 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
45/54 = 45 × 7/54 × 7 = 315/378 - Likewise, for the 2nd fraction, since 14 × 27 = 378,
20/14 = 20 × 27/14 × 27 = 540/378 - Subtract the two like fractions:
315/378 - 540/378 = 315 - 540/378 = -225/378 - After reducing the fraction, the answer is -25/42
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