Subtract 8/10 from 27/90
27/90 - 8/10 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
27/90 = 27 × 1/90 × 1 = 27/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
8/10 = 8 × 9/10 × 9 = 72/90 - Subtract the two like fractions:
27/90 - 72/90 = 27 - 72/90 = -45/90 - After reducing the fraction, the answer is -1/2
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