Question

В)-1 2/15+3 5/6+(-1,7)​

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

To add the given numbers, we need to work with mixed numbers and decimals separately:

1. Convert the mixed numbers to improper fractions:

• 2/15 = (2 * 15 + 1) / 15 = 31/15
• 3 5/6 = (3 * 6 + 5) / 6 = 23/6

2. Add the improper fractions:

• 31/15 + 23/6

To add fractions, we need to find a common denominator, which is the least common multiple (LCM) of 15 and 6, which is 30.

3. Convert the fractions to have a common denominator of 30:

• (31/15) * (2/2) = 62/30
• (23/6) * (5/5) = 115/30

4. Now, add the fractions:

• 62/30 + 115/30 = (62 + 115) / 30 = 177/30

5. Reduce the fraction, if possible:

• 177/30 = 59/10

6. Add the decimal number:

• (-1.7)

7. Combine the results:

• Sum = 59/10 - 1.7

To make the fraction and decimal compatible, we can convert 59/10 to a decimal:

8. 59/10 = 5.9

Now, the sum is:

Sum = 5.9 - 1.7 = 4.2

Therefore, the result of the expression is 4.2.