Subtract 20/9 from 42/4
1st number: 10 2/4, 2nd number: 2 2/9
42/4 - 20/9 is 149/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 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 9 × 4 = 36,
20/9 = 20 × 4/9 × 4 = 80/36 - Subtract the two like fractions:
378/36 - 80/36 = 378 - 80/36 = 298/36 - After reducing the fraction, the answer is 149/18
- In mixed form: 85/18
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