Add 12/70 and 6/81
12/70 + 6/81 is 232/945.
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,
12/70 = 12 × 81/70 × 81 = 972/5670 - Likewise, for the 2nd fraction, since 81 × 70 = 5670,
6/81 = 6 × 70/81 × 70 = 420/5670 - Add the two like fractions:
972/5670 + 420/5670 = 972 + 420/5670 = 1392/5670 - 1392/5670 simplified gives 232/945
- So, 12/70 + 6/81 = 232/945
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/70+6/81 12/70+12/81 36/70+6/81 12/70+18/81 60/70+6/81 12/70+30/81 84/70+6/81 12/70+42/81