Add 84/70 and 3/30
1st number: 1 14/70, 2nd number: 3/30
84/70 + 3/30 is 13/10.
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,
3/30 = 3 × 7/30 × 7 = 21/210 - Add the two like fractions:
252/210 + 21/210 = 252 + 21/210 = 273/210 - 273/210 simplified gives 13/10
- So, 84/70 + 3/30 = 13/10
In mixed form: 13/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70+6/30 84/70+3/60 84/70+9/30 84/70+3/90 84/70+15/30 84/70+21/30