Add 30/18 and 20/14
1st number: 1 12/18, 2nd number: 1 6/14
30/18 + 20/14 is 65/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 14 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
30/18 = 30 × 7/18 × 7 = 210/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
20/14 = 20 × 9/14 × 9 = 180/126 - Add the two like fractions:
210/126 + 180/126 = 210 + 180/126 = 390/126 - 390/126 simplified gives 65/21
- So, 30/18 + 20/14 = 65/21
In mixed form: 32/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/18+20/14 30/18+40/14 30/36+20/14 30/18+20/28 90/18+20/14 30/18+60/14 30/54+20/14 30/18+20/42 30/90+20/14 30/18+20/70 30/18+20/98