Subtract 90/54 from 72/90
1st number: 72/90, 2nd number: 1 36/54
72/90 - 90/54 is -13/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
72/90 = 72 × 3/90 × 3 = 216/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
90/54 = 90 × 5/54 × 5 = 450/270 - Subtract the two like fractions:
216/270 - 450/270 = 216 - 450/270 = -234/270 - After reducing the fraction, the answer is -13/15
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