Subtract 70/8 from 27/7
1st number: 3 6/7, 2nd number: 8 6/8
27/7 - 70/8 is -137/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
27/7 = 27 × 8/7 × 8 = 216/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
70/8 = 70 × 7/8 × 7 = 490/56 - Subtract the two like fractions:
216/56 - 490/56 = 216 - 490/56 = -274/56 - After reducing the fraction, the answer is -137/28
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