Add 10/20 and 3/80
10/20 + 3/80 is 43/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
10/20 = 10 × 4/20 × 4 = 40/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
3/80 = 3 × 1/80 × 1 = 3/80 - Add the two like fractions:
40/80 + 3/80 = 40 + 3/80 = 43/80 - So, 10/20 + 3/80 = 43/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20+6/80 10/40+3/80 30/20+3/80 10/20+9/80 10/60+3/80 50/20+3/80 10/20+15/80 70/20+3/80 10/20+21/80