Add 70/18 and 30/54
1st number: 3 16/18, 2nd number: 30/54
70/18 + 30/54 is 40/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
70/18 = 70 × 3/18 × 3 = 210/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
30/54 = 30 × 1/54 × 1 = 30/54 - Add the two like fractions:
210/54 + 30/54 = 210 + 30/54 = 240/54 - 240/54 simplified gives 40/9
- So, 70/18 + 30/54 = 40/9
In mixed form: 44/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18+60/54 70/36+30/54 70/18+90/54 70/54+30/54 70/90+30/54