Subtract 20/9 from 40/90
1st number: 40/90, 2nd number: 2 2/9
40/90 - 20/9 is -16/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
40/90 = 40 × 1/90 × 1 = 40/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
20/9 = 20 × 10/9 × 10 = 200/90 - Subtract the two like fractions:
40/90 - 200/90 = 40 - 200/90 = -160/90 - After reducing the fraction, the answer is -16/9
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