Add 42/18 and 25/28
1st number: 2 6/18, 2nd number: 25/28
42/18 + 25/28 is 271/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
42/18 = 42 × 14/18 × 14 = 588/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
25/28 = 25 × 9/28 × 9 = 225/252 - Add the two like fractions:
588/252 + 225/252 = 588 + 225/252 = 813/252 - 813/252 simplified gives 271/84
- So, 42/18 + 25/28 = 271/84
In mixed form: 319/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18+25/28 42/18+50/28 42/36+25/28 42/18+25/56 42/18+75/28 42/54+25/28 42/18+25/84 42/90+25/28