Add 2/70 and 42/81
2/70 + 42/81 is 517/945.
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,
2/70 = 2 × 81/70 × 81 = 162/5670 - Likewise, for the 2nd fraction, since 81 × 70 = 5670,
42/81 = 42 × 70/81 × 70 = 2940/5670 - Add the two like fractions:
162/5670 + 2940/5670 = 162 + 2940/5670 = 3102/5670 - 3102/5670 simplified gives 517/945
- So, 2/70 + 42/81 = 517/945
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/70+42/81 2/70+84/81 6/70+42/81 10/70+42/81 14/70+42/81