Subtract 45/75 from 27/72
27/72 - 45/75 is -9/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 75 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 72 × 25 = 1800,
27/72 = 27 × 25/72 × 25 = 675/1800 - Likewise, for the 2nd fraction, since 75 × 24 = 1800,
45/75 = 45 × 24/75 × 24 = 1080/1800 - Subtract the two like fractions:
675/1800 - 1080/1800 = 675 - 1080/1800 = -405/1800 - After reducing the fraction, the answer is -9/40
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