Add 25/28 and 28/42
25/28 + 28/42 is 131/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
25/28 = 25 × 3/28 × 3 = 75/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
28/42 = 28 × 2/42 × 2 = 56/84 - Add the two like fractions:
75/84 + 56/84 = 75 + 56/84 = 131/84 - So, 25/28 + 28/42 = 131/84
In mixed form: 147/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28+28/42 25/28+56/42 25/56+28/42 25/28+28/84 75/28+28/42 25/28+84/42 25/84+28/42