Subtract 18/9 from 10/80
1st number: 10/80, 2nd number: 2 0/9
10/80 - 18/9 is -15/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
10/80 = 10 × 9/80 × 9 = 90/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
18/9 = 18 × 80/9 × 80 = 1440/720 - Subtract the two like fractions:
90/720 - 1440/720 = 90 - 1440/720 = -1350/720 - After reducing the fraction, the answer is -15/8
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