Subtract 40/20 from 3/15
1st number: 3/15, 2nd number: 2 0/20
3/15 - 40/20 is -9/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
3/15 = 3 × 4/15 × 4 = 12/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
40/20 = 40 × 3/20 × 3 = 120/60 - Subtract the two like fractions:
12/60 - 120/60 = 12 - 120/60 = -108/60 - After reducing the fraction, the answer is -9/5
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