Subtract 40/72 from 5/75
5/75 - 40/72 is -22/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 72 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 75 × 24 = 1800,
5/75 = 5 × 24/75 × 24 = 120/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
40/72 = 40 × 25/72 × 25 = 1000/1800 - Subtract the two like fractions:
120/1800 - 1000/1800 = 120 - 1000/1800 = -880/1800 - After reducing the fraction, the answer is -22/45
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