Add 8/10 and 40/81
8/10 + 40/81 is 524/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 10 × 81 = 810,
8/10 = 8 × 81/10 × 81 = 648/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
40/81 = 40 × 10/81 × 10 = 400/810 - Add the two like fractions:
648/810 + 400/810 = 648 + 400/810 = 1048/810 - 1048/810 simplified gives 524/405
- So, 8/10 + 40/81 = 524/405
In mixed form: 1119/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/10+40/81 8/10+80/81 8/20+40/81 24/10+40/81 8/30+40/81 40/10+40/81 8/50+40/81 56/10+40/81 8/70+40/81