Subtract 10/80 from 35/2
1st number: 17 1/2, 2nd number: 10/80
35/2 - 10/80 is 139/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 2 × 40 = 80,
35/2 = 35 × 40/2 × 40 = 1400/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
10/80 = 10 × 1/80 × 1 = 10/80 - Subtract the two like fractions:
1400/80 - 10/80 = 1400 - 10/80 = 1390/80 - After reducing the fraction, the answer is 139/8
- In mixed form: 173/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/2-10/80 35/2-20/80 35/4-10/80 35/2-30/80 35/6-10/80 35/2-50/80 35/10-10/80 35/2-70/80 35/14-10/80