Subtract 40/72 from 42/50
42/50 - 40/72 is 64/225.
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,
42/50 = 42 × 36/50 × 36 = 1512/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
40/72 = 40 × 25/72 × 25 = 1000/1800 - Subtract the two like fractions:
1512/1800 - 1000/1800 = 1512 - 1000/1800 = 512/1800 - After reducing the fraction, the answer is 64/225
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