Subtract 72/45 from 9/90
1st number: 9/90, 2nd number: 1 27/45
9/90 - 72/45 is -3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
9/90 = 9 × 1/90 × 1 = 9/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
72/45 = 72 × 2/45 × 2 = 144/90 - Subtract the two like fractions:
9/90 - 144/90 = 9 - 144/90 = -135/90 - After reducing the fraction, the answer is -3/2
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