Subtract 49/54 from 42/20
1st number: 2 2/20, 2nd number: 49/54
42/20 - 49/54 is 161/135.
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,
42/20 = 42 × 27/20 × 27 = 1134/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
49/54 = 49 × 10/54 × 10 = 490/540 - Subtract the two like fractions:
1134/540 - 490/540 = 1134 - 490/540 = 644/540 - After reducing the fraction, the answer is 161/135
- In mixed form: 126/135
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