Subtract 84/72 from 40/15
1st number: 2 10/15, 2nd number: 1 12/72
40/15 - 84/72 is 3/2.
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,
40/15 = 40 × 24/15 × 24 = 960/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
84/72 = 84 × 5/72 × 5 = 420/360 - Subtract the two like fractions:
960/360 - 420/360 = 960 - 420/360 = 540/360 - After reducing the fraction, the answer is 3/2
- In mixed form: 11/2
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