Subtract 15/9 from 18/15
1st number: 1 3/15, 2nd number: 1 6/9
18/15 - 15/9 is -7/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
18/15 = 18 × 3/15 × 3 = 54/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
15/9 = 15 × 5/9 × 5 = 75/45 - Subtract the two like fractions:
54/45 - 75/45 = 54 - 75/45 = -21/45 - After reducing the fraction, the answer is -7/15
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