Subtract 90/9 from 12/15
1st number: 12/15, 2nd number: 10 0/9
12/15 - 90/9 is -46/5.
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,
12/15 = 12 × 3/15 × 3 = 36/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
90/9 = 90 × 5/9 × 5 = 450/45 - Subtract the two like fractions:
36/45 - 450/45 = 36 - 450/45 = -414/45 - After reducing the fraction, the answer is -46/5
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