Add 45/70 and 10/81
45/70 + 10/81 is 869/1134.
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,
45/70 = 45 × 81/70 × 81 = 3645/5670 - Likewise, for the 2nd fraction, since 81 × 70 = 5670,
10/81 = 10 × 70/81 × 70 = 700/5670 - Add the two like fractions:
3645/5670 + 700/5670 = 3645 + 700/5670 = 4345/5670 - 4345/5670 simplified gives 869/1134
- So, 45/70 + 10/81 = 869/1134
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70+10/81 45/70+20/81 45/70+30/81 45/70+50/81 45/70+70/81