Add 72/81 and 20/10
1st number: 72/81, 2nd number: 2 0/10
72/81 + 20/10 is 26/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 10 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
72/81 = 72 × 10/81 × 10 = 720/810 - Likewise, for the 2nd fraction, since 10 × 81 = 810,
20/10 = 20 × 81/10 × 81 = 1620/810 - Add the two like fractions:
720/810 + 1620/810 = 720 + 1620/810 = 2340/810 - 2340/810 simplified gives 26/9
- So, 72/81 + 20/10 = 26/9
In mixed form: 28/9
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