Subtract 84/90 from 40/2
1st number: 20 0/2, 2nd number: 84/90
40/2 - 84/90 is 286/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
40/2 = 40 × 45/2 × 45 = 1800/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
84/90 = 84 × 1/90 × 1 = 84/90 - Subtract the two like fractions:
1800/90 - 84/90 = 1800 - 84/90 = 1716/90 - After reducing the fraction, the answer is 286/15
- In mixed form: 191/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/2-84/90 40/4-84/90 40/6-84/90 40/10-84/90 40/14-84/90