Subtract 30/7 from 42/36
1st number: 1 6/36, 2nd number: 4 2/7
42/36 - 30/7 is -131/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 7 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
42/36 = 42 × 7/36 × 7 = 294/252 - Likewise, for the 2nd fraction, since 7 × 36 = 252,
30/7 = 30 × 36/7 × 36 = 1080/252 - Subtract the two like fractions:
294/252 - 1080/252 = 294 - 1080/252 = -786/252 - After reducing the fraction, the answer is -131/42
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