Subtract 90/54 from 20/14
1st number: 1 6/14, 2nd number: 1 36/54
20/14 - 90/54 is -5/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 14 × 27 = 378,
20/14 = 20 × 27/14 × 27 = 540/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
90/54 = 90 × 7/54 × 7 = 630/378 - Subtract the two like fractions:
540/378 - 630/378 = 540 - 630/378 = -90/378 - After reducing the fraction, the answer is -5/21
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