Add 28/30 and 6/70
28/30 + 6/70 is 107/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
28/30 = 28 × 7/30 × 7 = 196/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
6/70 = 6 × 3/70 × 3 = 18/210 - Add the two like fractions:
196/210 + 18/210 = 196 + 18/210 = 214/210 - 214/210 simplified gives 107/105
- So, 28/30 + 6/70 = 107/105
In mixed form: 12/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/30+6/70 28/30+12/70 28/60+6/70 84/30+6/70 28/30+18/70 28/90+6/70 28/30+30/70 28/30+42/70