Subtract 7/20 from 42/27
1st number: 1 15/27, 2nd number: 7/20
42/27 - 7/20 is 217/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 27 × 20 = 540,
42/27 = 42 × 20/27 × 20 = 840/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
7/20 = 7 × 27/20 × 27 = 189/540 - Subtract the two like fractions:
840/540 - 189/540 = 840 - 189/540 = 651/540 - After reducing the fraction, the answer is 217/180
- In mixed form: 137/180
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