Add 70/72 and 84/18
1st number: 70/72, 2nd number: 4 12/18
70/72 + 84/18 is 203/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
70/72 = 70 × 1/72 × 1 = 70/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
84/18 = 84 × 4/18 × 4 = 336/72 - Add the two like fractions:
70/72 + 336/72 = 70 + 336/72 = 406/72 - 406/72 simplified gives 203/36
- So, 70/72 + 84/18 = 203/36
In mixed form: 523/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/72+84/36 70/72+84/54 70/72+84/90