Add 28/25 and 25/7, Solve 1 3/25 + 3 4/7 as a fraction

Add 28/25 and 25/7

1^st number: 1 3/25, 2^nd number: 3 4/7

28/25 + 25/7 is 821/175.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 7 is 175

Next, find the equivalent fraction of both fractional numbers with denominator 175
For the 1st fraction, since 25 × 7 = 175,
28/25 = 28 × 7/25 × 7 = 196/175
Likewise, for the 2nd fraction, since 7 × 25 = 175,
25/7 = 25 × 25/7 × 25 = 625/175
Add the two like fractions:
196/175 + 625/175 = 196 + 625/175 = 821/175
So, 28/25 + 25/7 = 821/175
In mixed form: 4121/175

MathStep (Works offline)

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