Subtract 84/80 from 36/90
1st number: 36/90, 2nd number: 1 4/80
36/90 - 84/80 is -13/20.
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,
36/90 = 36 × 8/90 × 8 = 288/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
84/80 = 84 × 9/80 × 9 = 756/720 - Subtract the two like fractions:
288/720 - 756/720 = 288 - 756/720 = -468/720 - After reducing the fraction, the answer is -13/20
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Related: 72/90-84/80