Subtract 90/8 from 30/80
1st number: 30/80, 2nd number: 11 2/8
30/80 - 90/8 is -87/8.
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,
30/80 = 30 × 1/80 × 1 = 30/80 - Likewise, for the 2nd fraction, since 8 × 10 = 80,
90/8 = 90 × 10/8 × 10 = 900/80 - Subtract the two like fractions:
30/80 - 900/80 = 30 - 900/80 = -870/80 - After reducing the fraction, the answer is -87/8
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