Add 7/10 and 8/81
7/10 + 8/81 is 647/810.
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,
7/10 = 7 × 81/10 × 81 = 567/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
8/81 = 8 × 10/81 × 10 = 80/810 - Add the two like fractions:
567/810 + 80/810 = 567 + 80/810 = 647/810 - So, 7/10 + 8/81 = 647/810
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