Add 21/36 and 50/30
1st number: 21/36, 2nd number: 1 20/30
21/36 + 50/30 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 30 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
21/36 = 21 × 5/36 × 5 = 105/180 - Likewise, for the 2nd fraction, since 30 × 6 = 180,
50/30 = 50 × 6/30 × 6 = 300/180 - Add the two like fractions:
105/180 + 300/180 = 105 + 300/180 = 405/180 - 405/180 simplified gives 9/4
- So, 21/36 + 50/30 = 9/4
In mixed form: 21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/36+50/30 21/72+50/30 21/36+50/60 63/36+50/30 21/36+50/90