Add 28/70 and 25/3, Solve 28/70 + 8 1/3 as a fraction

Add 28/70 and 25/3

1^st number: 28/70, 2^nd number: 8 1/3

28/70 + 25/3 is 131/15.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 3 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 70 × 3 = 210,
28/70 = 28 × 3/70 × 3 = 84/210
Likewise, for the 2nd fraction, since 3 × 70 = 210,
25/3 = 25 × 70/3 × 70 = 1750/210
Add the two like fractions:
84/210 + 1750/210 = 84 + 1750/210 = 1834/210
1834/210 simplified gives 131/15
So, 28/70 + 25/3 = 131/15
In mixed form: 811/15

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad