Add 2/90 and 28/80
2/90 + 28/80 is 67/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
2/90 = 2 × 8/90 × 8 = 16/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
28/80 = 28 × 9/80 × 9 = 252/720 - Add the two like fractions:
16/720 + 252/720 = 16 + 252/720 = 268/720 - 268/720 simplified gives 67/180
- So, 2/90 + 28/80 = 67/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/90+28/80 2/90+56/80 6/90+28/80 2/90+84/80 10/90+28/80 14/90+28/80