Subtract 75/50 from 21/36
1st number: 21/36, 2nd number: 1 25/50
21/36 - 75/50 is -11/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 50 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 36 × 25 = 900,
21/36 = 21 × 25/36 × 25 = 525/900 - Likewise, for the 2nd fraction, since 50 × 18 = 900,
75/50 = 75 × 18/50 × 18 = 1350/900 - Subtract the two like fractions:
525/900 - 1350/900 = 525 - 1350/900 = -825/900 - After reducing the fraction, the answer is -11/12
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