Subtract 20/36 from 42/4
1st number: 10 2/4, 2nd number: 20/36
42/4 - 20/36 is 179/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
42/4 = 42 × 9/4 × 9 = 378/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
20/36 = 20 × 1/36 × 1 = 20/36 - Subtract the two like fractions:
378/36 - 20/36 = 378 - 20/36 = 358/36 - After reducing the fraction, the answer is 179/18
- In mixed form: 917/18
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