Subtract 49/28 from 42/27
1st number: 1 15/27, 2nd number: 1 21/28
42/27 - 49/28 is -7/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 28 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 27 × 28 = 756,
42/27 = 42 × 28/27 × 28 = 1176/756 - Likewise, for the 2nd fraction, since 28 × 27 = 756,
49/28 = 49 × 27/28 × 27 = 1323/756 - Subtract the two like fractions:
1176/756 - 1323/756 = 1176 - 1323/756 = -147/756 - After reducing the fraction, the answer is -7/36
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