Add 84/30 and 9/20
1st number: 2 24/30, 2nd number: 9/20
84/30 + 9/20 is 13/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
84/30 = 84 × 2/30 × 2 = 168/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
9/20 = 9 × 3/20 × 3 = 27/60 - Add the two like fractions:
168/60 + 27/60 = 168 + 27/60 = 195/60 - 195/60 simplified gives 13/4
- So, 84/30 + 9/20 = 13/4
In mixed form: 31/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+18/20 84/60+9/20 84/30+9/40 84/30+27/20 84/90+9/20 84/30+9/60 84/30+45/20 84/30+63/20