Subtract 28/35 from 6/20
6/20 - 28/35 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
6/20 = 6 × 7/20 × 7 = 42/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
28/35 = 28 × 4/35 × 4 = 112/140 - Subtract the two like fractions:
42/140 - 112/140 = 42 - 112/140 = -70/140 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/20-28/35 6/20-56/35 6/40-28/35 6/20-28/70 18/20-28/35 6/20-84/35 6/60-28/35 30/20-28/35 42/20-28/35