Add 15/12 and 70/30
1st number: 1 3/12, 2nd number: 2 10/30
15/12 + 70/30 is 43/12.
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,
15/12 = 15 × 5/12 × 5 = 75/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
70/30 = 70 × 2/30 × 2 = 140/60 - Add the two like fractions:
75/60 + 140/60 = 75 + 140/60 = 215/60 - 215/60 simplified gives 43/12
- So, 15/12 + 70/30 = 43/12
In mixed form: 37/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12+70/30 15/24+70/30 15/12+70/60 45/12+70/30 15/36+70/30 15/12+70/90 75/12+70/30 15/60+70/30 15/84+70/30