Subtract 40/72 from 12/25
12/25 - 40/72 is -17/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 72 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 25 × 72 = 1800,
12/25 = 12 × 72/25 × 72 = 864/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
40/72 = 40 × 25/72 × 25 = 1000/1800 - Subtract the two like fractions:
864/1800 - 1000/1800 = 864 - 1000/1800 = -136/1800 - After reducing the fraction, the answer is -17/225
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