Subtract 15/30 from 2/20
2/20 - 15/30 is -2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
2/20 = 2 × 3/20 × 3 = 6/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
15/30 = 15 × 2/30 × 2 = 30/60 - Subtract the two like fractions:
6/60 - 30/60 = 6 - 30/60 = -24/60 - After reducing the fraction, the answer is -2/5
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