Add 25/28 and 9/18
25/28 + 9/18 is 39/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
25/28 = 25 × 9/28 × 9 = 225/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
9/18 = 9 × 14/18 × 14 = 126/252 - Add the two like fractions:
225/252 + 126/252 = 225 + 126/252 = 351/252 - 351/252 simplified gives 39/28
- So, 25/28 + 9/18 = 39/28
In mixed form: 111/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28+9/18 25/56+9/18 25/28+9/36 75/28+9/18 25/28+27/18 25/84+9/18 25/28+9/54 25/28+45/18 25/28+9/90 25/28+63/18