Subtract 18/40 from 27/10
1st number: 2 7/10, 2nd number: 18/40
27/10 - 18/40 is 9/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
27/10 = 27 × 4/10 × 4 = 108/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
18/40 = 18 × 1/40 × 1 = 18/40 - Subtract the two like fractions:
108/40 - 18/40 = 108 - 18/40 = 90/40 - After reducing the fraction, the answer is 9/4
- In mixed form: 21/4
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