Add 30/60 and 42/20
1st number: 30/60, 2nd number: 2 2/20
30/60 + 42/20 is 13/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
30/60 = 30 × 1/60 × 1 = 30/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
42/20 = 42 × 3/20 × 3 = 126/60 - Add the two like fractions:
30/60 + 126/60 = 30 + 126/60 = 156/60 - 156/60 simplified gives 13/5
- So, 30/60 + 42/20 = 13/5
In mixed form: 23/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/60+84/20 30/60+42/40 90/60+42/20 30/60+42/60