Subtract 84/80 from 10/90
1st number: 10/90, 2nd number: 1 4/80
10/90 - 84/80 is -169/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
10/90 = 10 × 8/90 × 8 = 80/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
84/80 = 84 × 9/80 × 9 = 756/720 - Subtract the two like fractions:
80/720 - 756/720 = 80 - 756/720 = -676/720 - After reducing the fraction, the answer is -169/180
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