Subtract 45/49 from 80/20
1st number: 4 0/20, 2nd number: 45/49
80/20 - 45/49 is 151/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 49 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
80/20 = 80 × 49/20 × 49 = 3920/980 - Likewise, for the 2nd fraction, since 49 × 20 = 980,
45/49 = 45 × 20/49 × 20 = 900/980 - Subtract the two like fractions:
3920/980 - 900/980 = 3920 - 900/980 = 3020/980 - After reducing the fraction, the answer is 151/49
- In mixed form: 34/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20-90/49 80/40-45/49 80/20-45/98 80/60-45/49