Subtract 8/10 from 2/5
2/5 - 8/10 is -2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 5 × 2 = 10,
2/5 = 2 × 2/5 × 2 = 4/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
8/10 = 8 × 1/10 × 1 = 8/10 - Subtract the two like fractions:
4/10 - 8/10 = 4 - 8/10 = -4/10 - After reducing the fraction, the answer is -2/5
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