Add 9/80 and 3/20
9/80 + 3/20 is 21/80.
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,
9/80 = 9 × 1/80 × 1 = 9/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
3/20 = 3 × 4/20 × 4 = 12/80 - Add the two like fractions:
9/80 + 12/80 = 9 + 12/80 = 21/80 - So, 9/80 + 3/20 = 21/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/80+3/20 9/80+6/20 9/80+3/40 27/80+3/20 9/80+9/20 9/80+3/60 45/80+3/20 9/80+15/20 63/80+3/20 9/80+21/20