Add 18/9 and 70/4
1st number: 2 0/9, 2nd number: 17 2/4
18/9 + 70/4 is 39/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
18/9 = 18 × 4/9 × 4 = 72/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
70/4 = 70 × 9/4 × 9 = 630/36 - Add the two like fractions:
72/36 + 630/36 = 72 + 630/36 = 702/36 - 702/36 simplified gives 39/2
- So, 18/9 + 70/4 = 39/2
In mixed form: 191/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/9+70/4 18/9+70/8 54/9+70/4 18/27+70/4 18/9+70/12 90/9+70/4 18/45+70/4 18/9+70/20 18/63+70/4 18/9+70/28