Add 20/4 and 9/80
1st number: 5 0/4, 2nd number: 9/80
20/4 + 9/80 is 409/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 4 × 20 = 80,
20/4 = 20 × 20/4 × 20 = 400/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
9/80 = 9 × 1/80 × 1 = 9/80 - Add the two like fractions:
400/80 + 9/80 = 400 + 9/80 = 409/80 - So, 20/4 + 9/80 = 409/80
In mixed form: 59/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/4+9/80 20/4+18/80 20/8+9/80 60/4+9/80 20/4+27/80 20/12+9/80 20/4+45/80 20/4+63/80 20/28+9/80