Question

8 5/9 + 7 3/4 + 12 7/12

Answer 1

Ответ:

$28 \frac{8}{9}$

Answer 2

Пошаговое объяснение:

$\tt\displaystyle 8\frac{5}{9}+7\frac{3}{4}+12\frac{7}{{12}}=8\frac{{20}}{{36}}+7\frac{{27}}{{36}}+12\frac{{21}}{{36}}=27\frac{{68}}{{36}}=27\frac{{17}}{9}=\boxed{28\frac{8}{9}}$

Answer 3

To add these mixed numbers, we need to first convert them into improper fractions and then add them. Here's the step-by-step solution:

Step 1: Convert the mixed numbers to improper fractions. 8 5/9 = (8 * 9 + 5)/9 = 77/9 7 3/4 = (7 * 4 + 3)/4 = 31/4 12 7/12 = (12 * 12 + 7)/12 = 151/12

Step 2: Add the improper fractions. 77/9 + 31/4 + 151/12

Step 3: Find a common denominator for all the fractions. The common denominator for 9, 4, and 12 is 36.

Step 4: Convert each fraction to have a denominator of 36. (77/9) * (4/4) = 308/36 (31/4) * (9/9) = 279/36 151/12 * (3/3) = 453/36

Step 5: Add the fractions with the common denominator. 308/36 + 279/36 + 453/36 = (308 + 279 + 453)/36 = 1040/36

Step 6: Simplify the fraction, if possible. 1040/36 can be simplified by dividing both the numerator and denominator by their greatest common divisor, which is 8.

1040/36 ÷ 8/8 = 130/9

So, the final result is 130/9.