Add 49/18 and 36/20
1st number: 2 13/18, 2nd number: 1 16/20
49/18 + 36/20 is 407/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
49/18 = 49 × 10/18 × 10 = 490/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
36/20 = 36 × 9/20 × 9 = 324/180 - Add the two like fractions:
490/180 + 324/180 = 490 + 324/180 = 814/180 - 814/180 simplified gives 407/90
- So, 49/18 + 36/20 = 407/90
In mixed form: 447/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/18+36/20 49/18+72/20 49/36+36/20 49/18+36/40 49/54+36/20 49/18+36/60 49/90+36/20