Add 6/70 and 30/81
6/70 + 30/81 is 431/945.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 81 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 70 × 81 = 5670,
6/70 = 6 × 81/70 × 81 = 486/5670 - Likewise, for the 2nd fraction, since 81 × 70 = 5670,
30/81 = 30 × 70/81 × 70 = 2100/5670 - Add the two like fractions:
486/5670 + 2100/5670 = 486 + 2100/5670 = 2586/5670 - 2586/5670 simplified gives 431/945
- So, 6/70 + 30/81 = 431/945
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/70+30/81 6/70+60/81 18/70+30/81 6/70+90/81 30/70+30/81 42/70+30/81