Subtract 9/72 from 40/50
40/50 - 9/72 is 27/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 72 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 50 × 36 = 1800,
40/50 = 40 × 36/50 × 36 = 1440/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
9/72 = 9 × 25/72 × 25 = 225/1800 - Subtract the two like fractions:
1440/1800 - 225/1800 = 1440 - 225/1800 = 1215/1800 - After reducing the fraction, the answer is 27/40
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