Add 12/36 and 84/45
1st number: 12/36, 2nd number: 1 39/45
12/36 + 84/45 is 11/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
12/36 = 12 × 5/36 × 5 = 60/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
84/45 = 84 × 4/45 × 4 = 336/180 - Add the two like fractions:
60/180 + 336/180 = 60 + 336/180 = 396/180 - 396/180 simplified gives 11/5
- So, 12/36 + 84/45 = 11/5
In mixed form: 21/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/36+84/45 12/72+84/45 12/36+84/90 60/36+84/45 84/36+84/45