Subtract 1/15 from 40/72
40/72 - 1/15 is 22/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 15 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
40/72 = 40 × 5/72 × 5 = 200/360 - Likewise, for the 2nd fraction, since 15 × 24 = 360,
1/15 = 1 × 24/15 × 24 = 24/360 - Subtract the two like fractions:
200/360 - 24/360 = 200 - 24/360 = 176/360 - After reducing the fraction, the answer is 22/45
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