Add 7/2 and 28/7
1st number: 3 1/2, 2nd number: 4 0/7
7/2 + 28/7 is 15/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
7/2 = 7 × 7/2 × 7 = 49/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
28/7 = 28 × 2/7 × 2 = 56/14 - Add the two like fractions:
49/14 + 56/14 = 49 + 56/14 = 105/14 - 105/14 simplified gives 15/2
- So, 7/2 + 28/7 = 15/2
In mixed form: 71/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2+28/7 7/2+56/7 7/4+28/7 7/2+28/14 21/2+28/7 7/2+84/7 7/6+28/7 7/2+28/21 35/2+28/7 7/10+28/7 7/2+28/35 49/2+28/7 7/14+28/7 7/2+28/49