Add 42/30 and 20/5
1st number: 1 12/30, 2nd number: 4 0/5
42/30 + 20/5 is 27/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 5 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
42/30 = 42 × 1/30 × 1 = 42/30 - Likewise, for the 2nd fraction, since 5 × 6 = 30,
20/5 = 20 × 6/5 × 6 = 120/30 - Add the two like fractions:
42/30 + 120/30 = 42 + 120/30 = 162/30 - 162/30 simplified gives 27/5
- So, 42/30 + 20/5 = 27/5
In mixed form: 52/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+20/5 42/30+40/5 42/60+20/5 42/30+20/10 42/30+60/5 42/90+20/5 42/30+20/15 42/30+20/25 42/30+20/35