Add 9/80 and 20/40
9/80 + 20/40 is 49/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 40 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 40 × 2 = 80,
20/40 = 20 × 2/40 × 2 = 40/80 - Add the two like fractions:
9/80 + 40/80 = 9 + 40/80 = 49/80 - So, 9/80 + 20/40 = 49/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/80+20/40 9/80+20/80 27/80+20/40 9/80+60/40 45/80+20/40 63/80+20/40