Add 72/2 and 84/18
1st number: 36 0/2, 2nd number: 4 12/18
72/2 + 84/18 is 122/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
72/2 = 72 × 9/2 × 9 = 648/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
84/18 = 84 × 1/18 × 1 = 84/18 - Add the two like fractions:
648/18 + 84/18 = 648 + 84/18 = 732/18 - 732/18 simplified gives 122/3
- So, 72/2 + 84/18 = 122/3
In mixed form: 402/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/4+84/18 72/2+84/36 72/6+84/18 72/2+84/54 72/10+84/18 72/2+84/90 72/14+84/18