Add 21/50 and 3/18
21/50 + 3/18 is 44/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
21/50 = 21 × 9/50 × 9 = 189/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
3/18 = 3 × 25/18 × 25 = 75/450 - Add the two like fractions:
189/450 + 75/450 = 189 + 75/450 = 264/450 - 264/450 simplified gives 44/75
- So, 21/50 + 3/18 = 44/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/50+3/18 21/50+6/18 21/50+3/36 63/50+3/18 21/50+9/18 21/50+3/54 21/50+15/18 21/50+3/90 21/50+21/18