Subtract 18/72 from 18/15
1st number: 1 3/15, 2nd number: 18/72
18/15 - 18/72 is 19/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 15 × 24 = 360,
18/15 = 18 × 24/15 × 24 = 432/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
18/72 = 18 × 5/72 × 5 = 90/360 - Subtract the two like fractions:
432/360 - 90/360 = 432 - 90/360 = 342/360 - After reducing the fraction, the answer is 19/20
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