Add 7/81 and 28/10
1st number: 7/81, 2nd number: 2 8/10
7/81 + 28/10 is 1169/405.
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,
7/81 = 7 × 10/81 × 10 = 70/810 - Likewise, for the 2nd fraction, since 10 × 81 = 810,
28/10 = 28 × 81/10 × 81 = 2268/810 - Add the two like fractions:
70/810 + 2268/810 = 70 + 2268/810 = 2338/810 - 2338/810 simplified gives 1169/405
- So, 7/81 + 28/10 = 1169/405
In mixed form: 2359/405
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