Add 3/42 and 90/28
1st number: 3/42, 2nd number: 3 6/28
3/42 + 90/28 is 23/7.
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,
3/42 = 3 × 2/42 × 2 = 6/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
90/28 = 90 × 3/28 × 3 = 270/84 - Add the two like fractions:
6/84 + 270/84 = 6 + 270/84 = 276/84 - 276/84 simplified gives 23/7
- So, 3/42 + 90/28 = 23/7
In mixed form: 32/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/42+90/28 3/84+90/28 3/42+90/56 9/42+90/28 3/42+90/84 15/42+90/28 21/42+90/28