Add 25/42 and 28/63
25/42 + 28/63 is 131/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
25/42 = 25 × 3/42 × 3 = 75/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
28/63 = 28 × 2/63 × 2 = 56/126 - Add the two like fractions:
75/126 + 56/126 = 75 + 56/126 = 131/126 - So, 25/42 + 28/63 = 131/126
In mixed form: 15/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42+28/63 25/42+56/63 25/84+28/63 75/42+28/63 25/42+84/63