Add 28/32 and 25/18, Solve 28/32 + 1 7/18 as a fraction

Add 28/32 and 25/18

1^st number: 28/32, 2^nd number: 1 7/18

28/32 + 25/18 is 163/72.

Find the least common denominator or LCM of the two denominators:
LCM of 32 and 18 is 288

Next, find the equivalent fraction of both fractional numbers with denominator 288
For the 1st fraction, since 32 × 9 = 288,
28/32 = 28 × 9/32 × 9 = 252/288
Likewise, for the 2nd fraction, since 18 × 16 = 288,
25/18 = 25 × 16/18 × 16 = 400/288
Add the two like fractions:
252/288 + 400/288 = 252 + 400/288 = 652/288
652/288 simplified gives 163/72
So, 28/32 + 25/18 = 163/72
In mixed form: 219/72

MathStep (Works offline)

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