Add 12/27 and 84/40
1st number: 12/27, 2nd number: 2 4/40
12/27 + 84/40 is 229/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 40 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 27 × 40 = 1080,
12/27 = 12 × 40/27 × 40 = 480/1080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
84/40 = 84 × 27/40 × 27 = 2268/1080 - Add the two like fractions:
480/1080 + 2268/1080 = 480 + 2268/1080 = 2748/1080 - 2748/1080 simplified gives 229/90
- So, 12/27 + 84/40 = 229/90
In mixed form: 249/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/27+84/40 12/54+84/40 12/27+84/80 36/27+84/40 12/81+84/40 60/27+84/40 84/27+84/40