Subtract 28/70 from 4/5
4/5 - 28/70 is 2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 5 × 14 = 70,
4/5 = 4 × 14/5 × 14 = 56/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
28/70 = 28 × 1/70 × 1 = 28/70 - Subtract the two like fractions:
56/70 - 28/70 = 56 - 28/70 = 28/70 - After reducing the fraction, the answer is 2/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/5-28/70 4/5-56/70 4/10-28/70 12/5-28/70 4/5-84/70 4/15-28/70 20/5-28/70 4/25-28/70 28/5-28/70 4/35-28/70