Subtract 20/25 from 42/12
1st number: 3 6/12, 2nd number: 20/25
42/12 - 20/25 is 27/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 25 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
42/12 = 42 × 25/12 × 25 = 1050/300 - Likewise, for the 2nd fraction, since 25 × 12 = 300,
20/25 = 20 × 12/25 × 12 = 240/300 - Subtract the two like fractions:
1050/300 - 240/300 = 1050 - 240/300 = 810/300 - After reducing the fraction, the answer is 27/10
- In mixed form: 27/10
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