Add 12/70 and 35/21
1st number: 12/70, 2nd number: 1 14/21
12/70 + 35/21 is 193/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
12/70 = 12 × 3/70 × 3 = 36/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
35/21 = 35 × 10/21 × 10 = 350/210 - Add the two like fractions:
36/210 + 350/210 = 36 + 350/210 = 386/210 - 386/210 simplified gives 193/105
- So, 12/70 + 35/21 = 193/105
In mixed form: 188/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/70+35/21 12/70+70/21 12/70+35/42 36/70+35/21 12/70+35/63 60/70+35/21 84/70+35/21