Add 4/42 and 30/4
1st number: 4/42, 2nd number: 7 2/4
4/42 + 30/4 is 319/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
4/42 = 4 × 2/42 × 2 = 8/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
30/4 = 30 × 21/4 × 21 = 630/84 - Add the two like fractions:
8/84 + 630/84 = 8 + 630/84 = 638/84 - 638/84 simplified gives 319/42
- So, 4/42 + 30/4 = 319/42
In mixed form: 725/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/42+30/4 4/42+60/4 4/84+30/4 4/42+30/8 12/42+30/4 4/42+90/4 4/42+30/12 20/42+30/4 4/42+30/20 28/42+30/4 4/42+30/28