Subtract 18/15 from 10/90
1st number: 10/90, 2nd number: 1 3/15
10/90 - 18/15 is -49/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
10/90 = 10 × 1/90 × 1 = 10/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
18/15 = 18 × 6/15 × 6 = 108/90 - Subtract the two like fractions:
10/90 - 108/90 = 10 - 108/90 = -98/90 - After reducing the fraction, the answer is -49/45
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