Add 8/81 and 45/70
8/81 + 45/70 is 841/1134.
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,
8/81 = 8 × 70/81 × 70 = 560/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
45/70 = 45 × 81/70 × 81 = 3645/5670 - Add the two like fractions:
560/5670 + 3645/5670 = 560 + 3645/5670 = 4205/5670 - 4205/5670 simplified gives 841/1134
- So, 8/81 + 45/70 = 841/1134
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/81+45/70 8/81+90/70 24/81+45/70 40/81+45/70 56/81+45/70