Add 9/90 and 28/60
9/90 + 28/60 is 17/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
9/90 = 9 × 2/90 × 2 = 18/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
28/60 = 28 × 3/60 × 3 = 84/180 - Add the two like fractions:
18/180 + 84/180 = 18 + 84/180 = 102/180 - 102/180 simplified gives 17/30
- So, 9/90 + 28/60 = 17/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/90+28/60 9/90+56/60 27/90+28/60 9/90+84/60 45/90+28/60 63/90+28/60