Subtract 42/5 from 40/10
1st number: 4 0/10, 2nd number: 8 2/5
40/10 - 42/5 is -22/5.
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,
40/10 = 40 × 1/10 × 1 = 40/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
42/5 = 42 × 2/5 × 2 = 84/10 - Subtract the two like fractions:
40/10 - 84/10 = 40 - 84/10 = -44/10 - After reducing the fraction, the answer is -22/5
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