Question

1 ) 21 9/19 +(3 28/34+8 10/19)​

Answer 1

Ответ:

63.804954 вот...........

Answer 2

Ответ: 33 14/17

Пошаговое объяснение:

21 9/19+((3+8)+(28/34+10/19))

21 9/19+(11+436/323)

21 9/19+(11+1 113/323)

21 9/19+(12+113/323)

21 9/19+12 113/323

(21+12)+(9/19+113/323)

33+14/17

33 14/17

Answer 3

To add the given mixed numbers, follow these steps:

Step 1: Convert the mixed numbers to improper fractions. Step 2: Add the improper fractions. Step 3: Convert the sum back to a mixed number (if needed).

Let's calculate it step by step:

1. Convert mixed numbers to improper fractions:

   • 21 9/19 = (21 * 19 + 9) / 19 = 408 / 19
   • 3 28/34 = (3 * 34 + 28) / 34 = 130 / 34
   • 8 10/19 = (8 * 19 + 10) / 19 = 162 / 19

2. Add the improper fractions:

   • 408 / 19 + 130 / 34 + 162 / 19

3. Find a common denominator: The least common multiple of 19 and 34 is 646.

4. Rewrite the fractions with the common denominator:

   • (408 * 34) / 646 + (130 * 19) / 646 + (162 * 34) / 646
   • 13872 / 646 + 2470 / 646 + 5508 / 646

5. Add the numerators:

   • 13872 + 2470 + 5508 = 21850

6. The sum of the fractions is 21850 / 646.

7. Convert the sum back to a mixed number: Divide 21850 by 646:

   • 21850 ÷ 646 ≈ 33 with a remainder of 232.
   • So, the sum is approximately 33 232/646.

The final result, in mixed number form, is approximately 33 232/646.