Subtract 28/49 from 20/5
1st number: 4 0/5, 2nd number: 28/49
20/5 - 28/49 is 24/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 49 is 245
Next, find the equivalent fraction of both fractional numbers with denominator 245 - For the 1st fraction, since 5 × 49 = 245,
20/5 = 20 × 49/5 × 49 = 980/245 - Likewise, for the 2nd fraction, since 49 × 5 = 245,
28/49 = 28 × 5/49 × 5 = 140/245 - Subtract the two like fractions:
980/245 - 140/245 = 980 - 140/245 = 840/245 - After reducing the fraction, the answer is 24/7
- In mixed form: 33/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/5-28/49 20/5-56/49 20/10-28/49 20/5-28/98 60/5-28/49 20/5-84/49 20/15-28/49 20/25-28/49 20/35-28/49