Subtract 2/5 from 9/10
9/10 - 2/5 is 1/2.
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,
9/10 = 9 × 1/10 × 1 = 9/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
2/5 = 2 × 2/5 × 2 = 4/10 - Subtract the two like fractions:
9/10 - 4/10 = 9 - 4/10 = 5/10 - After reducing the fraction, the answer is 1/2
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