Subtract 35/80 from 8/20
8/20 - 35/80 is -3/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
8/20 = 8 × 4/20 × 4 = 32/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
35/80 = 35 × 1/80 × 1 = 35/80 - Subtract the two like fractions:
32/80 - 35/80 = 32 - 35/80 = -3/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/20-35/80 8/20-70/80 8/40-35/80 24/20-35/80 8/60-35/80 40/20-35/80 56/20-35/80