Subtract 42/36 from 21/50
1st number: 21/50, 2nd number: 1 6/36
21/50 - 42/36 is -56/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 36 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 50 × 18 = 900,
21/50 = 21 × 18/50 × 18 = 378/900 - Likewise, for the 2nd fraction, since 36 × 25 = 900,
42/36 = 42 × 25/36 × 25 = 1050/900 - Subtract the two like fractions:
378/900 - 1050/900 = 378 - 1050/900 = -672/900 - After reducing the fraction, the answer is -56/75
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