Add 28/90 and 7/36
28/90 + 7/36 is 91/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
28/90 = 28 × 2/90 × 2 = 56/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
7/36 = 7 × 5/36 × 5 = 35/180 - Add the two like fractions:
56/180 + 35/180 = 56 + 35/180 = 91/180 - So, 28/90 + 7/36 = 91/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/90+7/36 28/90+14/36 28/90+7/72 84/90+7/36 28/90+21/36 28/90+35/36 28/90+49/36