Add 84/20 and 20/30
1st number: 4 4/20, 2nd number: 20/30
84/20 + 20/30 is 73/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
84/20 = 84 × 3/20 × 3 = 252/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
20/30 = 20 × 2/30 × 2 = 40/60 - Add the two like fractions:
252/60 + 40/60 = 252 + 40/60 = 292/60 - 292/60 simplified gives 73/15
- So, 84/20 + 20/30 = 73/15
In mixed form: 413/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+40/30 84/40+20/30 84/20+20/60 84/20+60/30 84/60+20/30 84/20+20/90