Subtract 90/54 from 8/20
1st number: 8/20, 2nd number: 1 36/54
8/20 - 90/54 is -19/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
8/20 = 8 × 27/20 × 27 = 216/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
90/54 = 90 × 10/54 × 10 = 900/540 - Subtract the two like fractions:
216/540 - 900/540 = 216 - 900/540 = -684/540 - After reducing the fraction, the answer is -19/15
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