Add 42/20 and 30/36
1st number: 2 2/20, 2nd number: 30/36
42/20 + 30/36 is 44/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
42/20 = 42 × 9/20 × 9 = 378/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
30/36 = 30 × 5/36 × 5 = 150/180 - Add the two like fractions:
378/180 + 150/180 = 378 + 150/180 = 528/180 - 528/180 simplified gives 44/15
- So, 42/20 + 30/36 = 44/15
In mixed form: 214/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+30/36 42/20+60/36 42/40+30/36 42/20+30/72 42/20+90/36 42/60+30/36