Add 70/4 and 18/9
1st number: 17 2/4, 2nd number: 2 0/9
70/4 + 18/9 is 39/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
70/4 = 70 × 9/4 × 9 = 630/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
18/9 = 18 × 4/9 × 4 = 72/36 - Add the two like fractions:
630/36 + 72/36 = 630 + 72/36 = 702/36 - 702/36 simplified gives 39/2
- So, 70/4 + 18/9 = 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: 70/4+36/9 70/8+18/9 70/4+54/9 70/12+18/9 70/4+18/27 70/4+90/9 70/20+18/9 70/4+18/45 70/28+18/9 70/4+18/63