Subtract 42/27 from 28/36
1st number: 28/36, 2nd number: 1 15/27
28/36 - 42/27 is -7/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 36 × 3 = 108,
28/36 = 28 × 3/36 × 3 = 84/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
42/27 = 42 × 4/27 × 4 = 168/108 - Subtract the two like fractions:
84/108 - 168/108 = 84 - 168/108 = -84/108 - After reducing the fraction, the answer is -7/9
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