Subtract 81/15 from 40/50
1st number: 40/50, 2nd number: 5 6/15
40/50 - 81/15 is -23/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 15 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 50 × 3 = 150,
40/50 = 40 × 3/50 × 3 = 120/150 - Likewise, for the 2nd fraction, since 15 × 10 = 150,
81/15 = 81 × 10/15 × 10 = 810/150 - Subtract the two like fractions:
120/150 - 810/150 = 120 - 810/150 = -690/150 - After reducing the fraction, the answer is -23/5
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