Add 25/36 and 84/28, Solve 25/36 + 3 0/28 as a fraction

Add 25/36 and 84/28

1^st number: 25/36, 2^nd number: 3 0/28

25/36 + 84/28 is 133/36.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 28 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 36 × 7 = 252,
25/36 = 25 × 7/36 × 7 = 175/252
Likewise, for the 2nd fraction, since 28 × 9 = 252,
84/28 = 84 × 9/28 × 9 = 756/252
Add the two like fractions:
175/252 + 756/252 = 175 + 756/252 = 931/252
931/252 simplified gives 133/36
So, 25/36 + 84/28 = 133/36
In mixed form: 325/36

MathStep (Works offline)

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