Add 30/18 and 6/40
1st number: 1 12/18, 2nd number: 6/40
30/18 + 6/40 is 109/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
30/18 = 30 × 20/18 × 20 = 600/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
6/40 = 6 × 9/40 × 9 = 54/360 - Add the two like fractions:
600/360 + 54/360 = 600 + 54/360 = 654/360 - 654/360 simplified gives 109/60
- So, 30/18 + 6/40 = 109/60
In mixed form: 149/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/18+6/40 30/18+12/40 30/36+6/40 30/18+6/80 90/18+6/40 30/18+18/40 30/54+6/40 30/18+30/40 30/90+6/40 30/18+42/40