Subtract 20/15 from 18/10
1st number: 1 8/10, 2nd number: 1 5/15
18/10 - 20/15 is 7/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
18/10 = 18 × 3/10 × 3 = 54/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
20/15 = 20 × 2/15 × 2 = 40/30 - Subtract the two like fractions:
54/30 - 40/30 = 54 - 40/30 = 14/30 - After reducing the fraction, the answer is 7/15
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