Add 70/10 and 15/12
1st number: 7 0/10, 2nd number: 1 3/12
70/10 + 15/12 is 33/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 10 × 6 = 60,
70/10 = 70 × 6/10 × 6 = 420/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
15/12 = 15 × 5/12 × 5 = 75/60 - Add the two like fractions:
420/60 + 75/60 = 420 + 75/60 = 495/60 - 495/60 simplified gives 33/4
- So, 70/10 + 15/12 = 33/4
In mixed form: 81/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/10+30/12 70/20+15/12 70/10+15/24 70/10+45/12 70/30+15/12 70/10+15/36 70/10+75/12 70/50+15/12 70/10+15/60 70/10+15/84