Add 10/81 and 15/70
10/81 + 15/70 is 383/1134.
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,
10/81 = 10 × 70/81 × 70 = 700/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
15/70 = 15 × 81/70 × 81 = 1215/5670 - Add the two like fractions:
700/5670 + 1215/5670 = 700 + 1215/5670 = 1915/5670 - 1915/5670 simplified gives 383/1134
- So, 10/81 + 15/70 = 383/1134
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/81+15/70 10/81+30/70 30/81+15/70 10/81+45/70 50/81+15/70 10/81+75/70 70/81+15/70