Subtract 60/72 from 90/40
1st number: 2 10/40, 2nd number: 60/72
90/40 - 60/72 is 17/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
90/40 = 90 × 9/40 × 9 = 810/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
60/72 = 60 × 5/72 × 5 = 300/360 - Subtract the two like fractions:
810/360 - 300/360 = 810 - 300/360 = 510/360 - After reducing the fraction, the answer is 17/12
- In mixed form: 15/12
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