Subtract 18/8 from 20/9
1st number: 2 2/9, 2nd number: 2 2/8
20/9 - 18/8 is -1/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
20/9 = 20 × 8/9 × 8 = 160/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
18/8 = 18 × 9/8 × 9 = 162/72 - Subtract the two like fractions:
160/72 - 162/72 = 160 - 162/72 = -2/72 - After reducing the fraction, the answer is -1/36
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