Add 3/12 and 40/30
1st number: 3/12, 2nd number: 1 10/30
3/12 + 40/30 is 19/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
3/12 = 3 × 5/12 × 5 = 15/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
40/30 = 40 × 2/30 × 2 = 80/60 - Add the two like fractions:
15/60 + 80/60 = 15 + 80/60 = 95/60 - 95/60 simplified gives 19/12
- So, 3/12 + 40/30 = 19/12
In mixed form: 17/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12+40/30 3/12+80/30 3/24+40/30 3/12+40/60 9/12+40/30 3/36+40/30 3/12+40/90 15/12+40/30 3/60+40/30 21/12+40/30 3/84+40/30