Subtract 90/45 from 9/15
1st number: 9/15, 2nd number: 2 0/45
9/15 - 90/45 is -7/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
9/15 = 9 × 3/15 × 3 = 27/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
90/45 = 90 × 1/45 × 1 = 90/45 - Subtract the two like fractions:
27/45 - 90/45 = 27 - 90/45 = -63/45 - After reducing the fraction, the answer is -7/5
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