Subtract 40/10 from 20/9
1st number: 2 2/9, 2nd number: 4 0/10
20/9 - 40/10 is -16/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
20/9 = 20 × 10/9 × 10 = 200/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
40/10 = 40 × 9/10 × 9 = 360/90 - Subtract the two like fractions:
200/90 - 360/90 = 200 - 360/90 = -160/90 - After reducing the fraction, the answer is -16/9
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