Subtract 90/72 from 3/5
1st number: 3/5, 2nd number: 1 18/72
3/5 - 90/72 is -13/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 5 × 72 = 360,
3/5 = 3 × 72/5 × 72 = 216/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
90/72 = 90 × 5/72 × 5 = 450/360 - Subtract the two like fractions:
216/360 - 450/360 = 216 - 450/360 = -234/360 - After reducing the fraction, the answer is -13/20
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