Subtract 10/25 from 42/20
1st number: 2 2/20, 2nd number: 10/25
42/20 - 10/25 is 17/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
42/20 = 42 × 5/20 × 5 = 210/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
10/25 = 10 × 4/25 × 4 = 40/100 - Subtract the two like fractions:
210/100 - 40/100 = 210 - 40/100 = 170/100 - After reducing the fraction, the answer is 17/10
- In mixed form: 17/10
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