Subtract 30/27 from 42/49
1st number: 42/49, 2nd number: 1 3/27
42/49 - 30/27 is -16/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 27 is 1323
Next, find the equivalent fraction of both fractional numbers with denominator 1323 - For the 1st fraction, since 49 × 27 = 1323,
42/49 = 42 × 27/49 × 27 = 1134/1323 - Likewise, for the 2nd fraction, since 27 × 49 = 1323,
30/27 = 30 × 49/27 × 49 = 1470/1323 - Subtract the two like fractions:
1134/1323 - 1470/1323 = 1134 - 1470/1323 = -336/1323 - After reducing the fraction, the answer is -16/63
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