Subtract 20/5 from 42/10
1st number: 4 2/10, 2nd number: 4 0/5
42/10 - 20/5 is 1/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 5 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 10 × 1 = 10,
42/10 = 42 × 1/10 × 1 = 42/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
20/5 = 20 × 2/5 × 2 = 40/10 - Subtract the two like fractions:
42/10 - 40/10 = 42 - 40/10 = 2/10 - After reducing the fraction, the answer is 1/5
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