Add 84/30 and 72/20
1st number: 2 24/30, 2nd number: 3 12/20
84/30 + 72/20 is 32/5.
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,
72/20 = 72 × 3/20 × 3 = 216/60 - Add the two like fractions:
168/60 + 216/60 = 168 + 216/60 = 384/60 - 384/60 simplified gives 32/5
- So, 84/30 + 72/20 = 32/5
In mixed form: 62/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/60+72/20 84/30+72/40 84/90+72/20 84/30+72/60