Subtract 90/72 from 1/15
1st number: 1/15, 2nd number: 1 18/72
1/15 - 90/72 is -71/60.
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,
1/15 = 1 × 24/15 × 24 = 24/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
90/72 = 90 × 5/72 × 5 = 450/360 - Subtract the two like fractions:
24/360 - 450/360 = 24 - 450/360 = -426/360 - After reducing the fraction, the answer is -71/60
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