Subtract 40/20 from 35/2
1st number: 17 1/2, 2nd number: 2 0/20
35/2 - 40/20 is 31/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 2 × 10 = 20,
35/2 = 35 × 10/2 × 10 = 350/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
40/20 = 40 × 1/20 × 1 = 40/20 - Subtract the two like fractions:
350/20 - 40/20 = 350 - 40/20 = 310/20 - After reducing the fraction, the answer is 31/2
- In mixed form: 151/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/2-40/20 35/2-80/20 35/4-40/20 35/6-40/20 35/2-40/60 35/10-40/20 35/14-40/20