Subtract 40/20 from 15/10
1st number: 1 5/10, 2nd number: 2 0/20
15/10 - 40/20 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
15/10 = 15 × 2/10 × 2 = 30/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
40/20 = 40 × 1/20 × 1 = 40/20 - Subtract the two like fractions:
30/20 - 40/20 = 30 - 40/20 = -10/20 - After reducing the fraction, the answer is -1/2
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