Subtract 10/8 from 20/35
1st number: 20/35, 2nd number: 1 2/8
20/35 - 10/8 is -19/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
20/35 = 20 × 8/35 × 8 = 160/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
10/8 = 10 × 35/8 × 35 = 350/280 - Subtract the two like fractions:
160/280 - 350/280 = 160 - 350/280 = -190/280 - After reducing the fraction, the answer is -19/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/35-10/8 20/35-20/8 20/70-10/8 20/35-10/16 60/35-10/8 20/35-30/8 20/35-10/24 20/35-50/8 20/35-10/40 20/35-70/8 20/35-10/56