Subtract 20/50 from 42/36
1st number: 1 6/36, 2nd number: 20/50
42/36 - 20/50 is 23/30.
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,
42/36 = 42 × 25/36 × 25 = 1050/900 - Likewise, for the 2nd fraction, since 50 × 18 = 900,
20/50 = 20 × 18/50 × 18 = 360/900 - Subtract the two like fractions:
1050/900 - 360/900 = 1050 - 360/900 = 690/900 - After reducing the fraction, the answer is 23/30
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