Subtract 20/8 from 5/18
1st number: 5/18, 2nd number: 2 4/8
5/18 - 20/8 is -20/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
5/18 = 5 × 4/18 × 4 = 20/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
20/8 = 20 × 9/8 × 9 = 180/72 - Subtract the two like fractions:
20/72 - 180/72 = 20 - 180/72 = -160/72 - After reducing the fraction, the answer is -20/9
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