Subtract 12/40 from 20/9
1st number: 2 2/9, 2nd number: 12/40
20/9 - 12/40 is 173/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
20/9 = 20 × 40/9 × 40 = 800/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
12/40 = 12 × 9/40 × 9 = 108/360 - Subtract the two like fractions:
800/360 - 108/360 = 800 - 108/360 = 692/360 - After reducing the fraction, the answer is 173/90
- In mixed form: 183/90
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