Add 81/80 and 50/20
1st number: 1 1/80, 2nd number: 2 10/20
81/80 + 50/20 is 281/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
81/80 = 81 × 1/80 × 1 = 81/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
50/20 = 50 × 4/20 × 4 = 200/80 - Add the two like fractions:
81/80 + 200/80 = 81 + 200/80 = 281/80 - So, 81/80 + 50/20 = 281/80
In mixed form: 341/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/80+50/40 81/80+50/60