Subtract 18/8 from 7/27
1st number: 7/27, 2nd number: 2 2/8
7/27 - 18/8 is -215/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 8 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 27 × 8 = 216,
7/27 = 7 × 8/27 × 8 = 56/216 - Likewise, for the 2nd fraction, since 8 × 27 = 216,
18/8 = 18 × 27/8 × 27 = 486/216 - Subtract the two like fractions:
56/216 - 486/216 = 56 - 486/216 = -430/216 - After reducing the fraction, the answer is -215/108
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