Add 42/4 and 30/9
1st number: 10 2/4, 2nd number: 3 3/9
42/4 + 30/9 is 83/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
42/4 = 42 × 9/4 × 9 = 378/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
30/9 = 30 × 4/9 × 4 = 120/36 - Add the two like fractions:
378/36 + 120/36 = 378 + 120/36 = 498/36 - 498/36 simplified gives 83/6
- So, 42/4 + 30/9 = 83/6
In mixed form: 135/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4+30/9 42/4+60/9 42/8+30/9 42/4+30/18 42/4+90/9 42/12+30/9 42/4+30/27 42/20+30/9 42/4+30/45 42/28+30/9 42/4+30/63