Add 2/80 and 6/90
2/80 + 6/90 is 11/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
2/80 = 2 × 9/80 × 9 = 18/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
6/90 = 6 × 8/90 × 8 = 48/720 - Add the two like fractions:
18/720 + 48/720 = 18 + 48/720 = 66/720 - 66/720 simplified gives 11/120
- So, 2/80 + 6/90 = 11/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/80+6/90 2/80+12/90 6/80+6/90 2/80+18/90 10/80+6/90 2/80+30/90 14/80+6/90 2/80+42/90