Add 28/14 and 40/15
1st number: 2 0/14, 2nd number: 2 10/15
28/14 + 40/15 is 14/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
28/14 = 28 × 15/14 × 15 = 420/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
40/15 = 40 × 14/15 × 14 = 560/210 - Add the two like fractions:
420/210 + 560/210 = 420 + 560/210 = 980/210 - 980/210 simplified gives 14/3
- So, 28/14 + 40/15 = 14/3
In mixed form: 42/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/14+40/15 28/14+80/15 28/14+40/30 84/14+40/15 28/42+40/15 28/14+40/45 28/70+40/15 28/14+40/75 28/98+40/15