Subtract 90/40 from 60/80
1st number: 60/80, 2nd number: 2 10/40
60/80 - 90/40 is -3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
60/80 = 60 × 1/80 × 1 = 60/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
90/40 = 90 × 2/40 × 2 = 180/80 - Subtract the two like fractions:
60/80 - 180/80 = 60 - 180/80 = -120/80 - After reducing the fraction, the answer is -3/2
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Related: 60/80-90/80