Add 28/42 and 36/7
1st number: 28/42, 2nd number: 5 1/7
28/42 + 36/7 is 122/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
28/42 = 28 × 1/42 × 1 = 28/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
36/7 = 36 × 6/7 × 6 = 216/42 - Add the two like fractions:
28/42 + 216/42 = 28 + 216/42 = 244/42 - 244/42 simplified gives 122/21
- So, 28/42 + 36/7 = 122/21
In mixed form: 517/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42+36/7 28/42+72/7 28/84+36/7 28/42+36/14 84/42+36/7 28/42+36/21 28/42+36/35 28/42+36/49