Add 7/42 and 48/28
1st number: 7/42, 2nd number: 1 20/28
7/42 + 48/28 is 79/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
7/42 = 7 × 2/42 × 2 = 14/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
48/28 = 48 × 3/28 × 3 = 144/84 - Add the two like fractions:
14/84 + 144/84 = 14 + 144/84 = 158/84 - 158/84 simplified gives 79/42
- So, 7/42 + 48/28 = 79/42
In mixed form: 137/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/42+48/28 7/42+96/28 7/84+48/28 7/42+48/56 21/42+48/28 7/42+48/84 35/42+48/28 49/42+48/28