Subtract 6/8 from 18/80
18/80 - 6/8 is -21/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 8 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
18/80 = 18 × 1/80 × 1 = 18/80 - Likewise, for the 2nd fraction, since 8 × 10 = 80,
6/8 = 6 × 10/8 × 10 = 60/80 - Subtract the two like fractions:
18/80 - 60/80 = 18 - 60/80 = -42/80 - After reducing the fraction, the answer is -21/40
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