Add 70/84 and 6/30
70/84 + 6/30 is 31/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
70/84 = 70 × 5/84 × 5 = 350/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
6/30 = 6 × 14/30 × 14 = 84/420 - Add the two like fractions:
350/420 + 84/420 = 350 + 84/420 = 434/420 - 434/420 simplified gives 31/30
- So, 70/84 + 6/30 = 31/30
In mixed form: 11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/84+12/30 70/84+6/60 70/84+18/30 70/84+6/90 70/84+42/30