Add 84/70 and 14/30
1st number: 1 14/70, 2nd number: 14/30
84/70 + 14/30 is 5/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
84/70 = 84 × 3/70 × 3 = 252/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
14/30 = 14 × 7/30 × 7 = 98/210 - Add the two like fractions:
252/210 + 98/210 = 252 + 98/210 = 350/210 - 350/210 simplified gives 5/3
- So, 84/70 + 14/30 = 5/3
In mixed form: 12/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70+28/30 84/70+14/60 84/70+42/30 84/70+14/90 84/70+70/30 84/70+98/30