Add 9/30 and 70/18
1st number: 9/30, 2nd number: 3 16/18
9/30 + 70/18 is 377/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
9/30 = 9 × 3/30 × 3 = 27/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
70/18 = 70 × 5/18 × 5 = 350/90 - Add the two like fractions:
27/90 + 350/90 = 27 + 350/90 = 377/90 - So, 9/30 + 70/18 = 377/90
In mixed form: 417/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30+70/18 9/60+70/18 9/30+70/36 27/30+70/18 9/90+70/18 9/30+70/54 45/30+70/18 9/30+70/90 63/30+70/18