Subtract 4/10 from 9/40
9/40 - 4/10 is -7/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
9/40 = 9 × 1/40 × 1 = 9/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
4/10 = 4 × 4/10 × 4 = 16/40 - Subtract the two like fractions:
9/40 - 16/40 = 9 - 16/40 = -7/40
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