Subtract 20/35 from 4/8
4/8 - 20/35 is -1/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 35 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
4/8 = 4 × 35/8 × 35 = 140/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
20/35 = 20 × 8/35 × 8 = 160/280 - Subtract the two like fractions:
140/280 - 160/280 = 140 - 160/280 = -20/280 - After reducing the fraction, the answer is -1/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/8-40/35 4/16-20/35 4/8-20/70 12/8-20/35 4/8-60/35 4/24-20/35 20/8-20/35 4/40-20/35 28/8-20/35 4/56-20/35