Add 2/36 and 21/45
2/36 + 21/45 is 47/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
2/36 = 2 × 5/36 × 5 = 10/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
21/45 = 21 × 4/45 × 4 = 84/180 - Add the two like fractions:
10/180 + 84/180 = 10 + 84/180 = 94/180 - 94/180 simplified gives 47/90
- So, 2/36 + 21/45 = 47/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/36+21/45 2/36+42/45 2/72+21/45 2/36+21/90 6/36+21/45 2/36+63/45 10/36+21/45 14/36+21/45