Add 3/81 and 49/70
3/81 + 49/70 is 199/270.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 70 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 81 × 70 = 5670,
3/81 = 3 × 70/81 × 70 = 210/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
49/70 = 49 × 81/70 × 81 = 3969/5670 - Add the two like fractions:
210/5670 + 3969/5670 = 210 + 3969/5670 = 4179/5670 - 4179/5670 simplified gives 199/270
- So, 3/81 + 49/70 = 199/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/81+49/70 3/81+98/70 9/81+49/70 15/81+49/70 21/81+49/70