Add 12/15 and 70/12
1st number: 12/15, 2nd number: 5 10/12
12/15 + 70/12 is 199/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
12/15 = 12 × 4/15 × 4 = 48/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
70/12 = 70 × 5/12 × 5 = 350/60 - Add the two like fractions:
48/60 + 350/60 = 48 + 350/60 = 398/60 - 398/60 simplified gives 199/30
- So, 12/15 + 70/12 = 199/30
In mixed form: 619/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/15+70/12 12/30+70/12 12/15+70/24 36/15+70/12 12/45+70/12 12/15+70/36 60/15+70/12 12/75+70/12 12/15+70/60 84/15+70/12 12/15+70/84