Add 49/20 and 21/90
1st number: 2 9/20, 2nd number: 21/90
49/20 + 21/90 is 161/60.
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,
49/20 = 49 × 9/20 × 9 = 441/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
21/90 = 21 × 2/90 × 2 = 42/180 - Add the two like fractions:
441/180 + 42/180 = 441 + 42/180 = 483/180 - 483/180 simplified gives 161/60
- So, 49/20 + 21/90 = 161/60
In mixed form: 241/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/20+21/90 49/20+42/90 49/40+21/90 49/20+63/90 49/60+21/90