Add 28/14 and 5/15
1st number: 2 0/14, 2nd number: 5/15
28/14 + 5/15 is 7/3.
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,
5/15 = 5 × 14/15 × 14 = 70/210 - Add the two like fractions:
420/210 + 70/210 = 420 + 70/210 = 490/210 - 490/210 simplified gives 7/3
- So, 28/14 + 5/15 = 7/3
In mixed form: 21/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/14+5/15 28/14+10/15 28/14+5/30 84/14+5/15 28/42+5/15 28/14+5/45 28/14+25/15 28/70+5/15 28/14+5/75 28/14+35/15 28/98+5/15