Add 3/70 and 80/12
1st number: 3/70, 2nd number: 6 8/12
3/70 + 80/12 is 1409/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
3/70 = 3 × 6/70 × 6 = 18/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
80/12 = 80 × 35/12 × 35 = 2800/420 - Add the two like fractions:
18/420 + 2800/420 = 18 + 2800/420 = 2818/420 - 2818/420 simplified gives 1409/210
- So, 3/70 + 80/12 = 1409/210
In mixed form: 6149/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/70+80/12 3/70+80/24 9/70+80/12 3/70+80/36 15/70+80/12 3/70+80/60 21/70+80/12 3/70+80/84