Add 40/18 and 28/84
1st number: 2 4/18, 2nd number: 28/84
40/18 + 28/84 is 23/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
40/18 = 40 × 14/18 × 14 = 560/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
28/84 = 28 × 3/84 × 3 = 84/252 - Add the two like fractions:
560/252 + 84/252 = 560 + 84/252 = 644/252 - 644/252 simplified gives 23/9
- So, 40/18 + 28/84 = 23/9
In mixed form: 25/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18+28/84 40/18+56/84 40/36+28/84 40/54+28/84 40/90+28/84