Add 80/4 and 50/20
1st number: 20 0/4, 2nd number: 2 10/20
80/4 + 50/20 is 45/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
80/4 = 80 × 5/4 × 5 = 400/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
50/20 = 50 × 1/20 × 1 = 50/20 - Add the two like fractions:
400/20 + 50/20 = 400 + 50/20 = 450/20 - 450/20 simplified gives 45/2
- So, 80/4 + 50/20 = 45/2
In mixed form: 221/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+50/20 80/4+50/40 80/12+50/20 80/4+50/60 80/20+50/20 80/28+50/20