Add 60/84 and 30/18
1st number: 60/84, 2nd number: 1 12/18
60/84 + 30/18 is 50/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
60/84 = 60 × 3/84 × 3 = 180/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
30/18 = 30 × 14/18 × 14 = 420/252 - Add the two like fractions:
180/252 + 420/252 = 180 + 420/252 = 600/252 - 600/252 simplified gives 50/21
- So, 60/84 + 30/18 = 50/21
In mixed form: 28/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84+60/18 60/84+30/36 60/84+90/18 60/84+30/54 60/84+30/90