Add 21/9 and 90/50
1st number: 2 3/9, 2nd number: 1 40/50
21/9 + 90/50 is 62/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 9 × 50 = 450,
21/9 = 21 × 50/9 × 50 = 1050/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
90/50 = 90 × 9/50 × 9 = 810/450 - Add the two like fractions:
1050/450 + 810/450 = 1050 + 810/450 = 1860/450 - 1860/450 simplified gives 62/15
- So, 21/9 + 90/50 = 62/15
In mixed form: 42/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/9+90/50 21/18+90/50 63/9+90/50 21/27+90/50 21/45+90/50 21/63+90/50