Add 8/28 and 40/3
1st number: 8/28, 2nd number: 13 1/3
8/28 + 40/3 is 286/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 3 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
8/28 = 8 × 3/28 × 3 = 24/84 - Likewise, for the 2nd fraction, since 3 × 28 = 84,
40/3 = 40 × 28/3 × 28 = 1120/84 - Add the two like fractions:
24/84 + 1120/84 = 24 + 1120/84 = 1144/84 - 1144/84 simplified gives 286/21
- So, 8/28 + 40/3 = 286/21
In mixed form: 1313/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/28+40/3 8/28+80/3 8/56+40/3 8/28+40/6 24/28+40/3 8/84+40/3 8/28+40/9 40/28+40/3 8/28+40/15 56/28+40/3 8/28+40/21