Add 2/20 and 28/90
2/20 + 28/90 is 37/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
2/20 = 2 × 9/20 × 9 = 18/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
28/90 = 28 × 2/90 × 2 = 56/180 - Add the two like fractions:
18/180 + 56/180 = 18 + 56/180 = 74/180 - 74/180 simplified gives 37/90
- So, 2/20 + 28/90 = 37/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/20+28/90 2/20+56/90 2/40+28/90 6/20+28/90 2/20+84/90 2/60+28/90 10/20+28/90 14/20+28/90