Add 25/28 and 3/18
25/28 + 3/18 is 89/84.
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,
3/18 = 3 × 14/18 × 14 = 42/252 - Add the two like fractions:
225/252 + 42/252 = 225 + 42/252 = 267/252 - 267/252 simplified gives 89/84
- So, 25/28 + 3/18 = 89/84
In mixed form: 15/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28+3/18 25/28+6/18 25/56+3/18 25/28+3/36 75/28+3/18 25/28+9/18 25/84+3/18 25/28+3/54 25/28+15/18 25/28+3/90 25/28+21/18