Subtract 70/28 from 63/27
1st number: 2 9/27, 2nd number: 2 14/28
63/27 - 70/28 is -1/6.
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,
63/27 = 63 × 28/27 × 28 = 1764/756 - Likewise, for the 2nd fraction, since 28 × 27 = 756,
70/28 = 70 × 27/28 × 27 = 1890/756 - Subtract the two like fractions:
1764/756 - 1890/756 = 1764 - 1890/756 = -126/756 - After reducing the fraction, the answer is -1/6
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