Add 84/36 and 21/10
1st number: 2 12/36, 2nd number: 2 1/10
84/36 + 21/10 is 133/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 10 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
84/36 = 84 × 5/36 × 5 = 420/180 - Likewise, for the 2nd fraction, since 10 × 18 = 180,
21/10 = 21 × 18/10 × 18 = 378/180 - Add the two like fractions:
420/180 + 378/180 = 420 + 378/180 = 798/180 - 798/180 simplified gives 133/30
- So, 84/36 + 21/10 = 133/30
In mixed form: 413/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/36+42/10 84/72+21/10 84/36+21/20 84/36+63/10 84/36+21/30 84/36+21/50 84/36+21/70