Subtract 20/18 from 18/10
1st number: 1 8/10, 2nd number: 1 2/18
18/10 - 20/18 is 31/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
18/10 = 18 × 9/10 × 9 = 162/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
20/18 = 20 × 5/18 × 5 = 100/90 - Subtract the two like fractions:
162/90 - 100/90 = 162 - 100/90 = 62/90 - After reducing the fraction, the answer is 31/45
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