Subtract 90/5 from 80/9
1st number: 8 8/9, 2nd number: 18 0/5
80/9 - 90/5 is -82/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
80/9 = 80 × 5/9 × 5 = 400/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
90/5 = 90 × 9/5 × 9 = 810/45 - Subtract the two like fractions:
400/45 - 810/45 = 400 - 810/45 = -410/45 - After reducing the fraction, the answer is -82/9
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