Add 30/42 and 1/28
30/42 + 1/28 is 3/4.
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,
30/42 = 30 × 2/42 × 2 = 60/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
1/28 = 1 × 3/28 × 3 = 3/84 - Add the two like fractions:
60/84 + 3/84 = 60 + 3/84 = 63/84 - 63/84 simplified gives 3/4
- So, 30/42 + 1/28 = 3/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/42+1/28 30/42+2/28 30/84+1/28 30/42+1/56 90/42+1/28 30/42+3/28 30/42+1/84 30/42+5/28 30/42+7/28