Question

0,8 × 2 1/12 + 2 1/6=

Answer 1

Ответ получается 4.9

Answer 2

To solve the equation 0.8 × 2 1/12 + 2 1/6, we need to perform the multiplication and addition operations in the correct order.

First, let's convert the mixed fractions into improper fractions.

2 1/12 can be written as (2 × 12 + 1) / 12 = 25 / 12

2 1/6 can be written as (2 × 6 + 1) / 6 = 13 / 6

Now, we can perform the multiplication:

0.8 × (25 / 12) = 0.8 × 25 / 12

To multiply decimals and fractions, we multiply the numbers and then divide by the common denominator. In this case, the common denominator is 12.

0.8 × 25 = 20

So, we have 20 / 12.

Now, let's add this result to the fraction 13 / 6:

20 / 12 + 13 / 6

To add fractions, we need to find a common denominator. In this case, the common denominator is 12.

20 / 12 + 13 / 6 = (20 × 2) / (12 × 2) + 13 / 6

= 40 / 24 + 13 / 6

Now, we can add the fractions:

40 / 24 + 13 / 6 = (40 + 13 × 4) / 24

= (40 + 52) / 24

= 92 / 24

To simplify the fraction, we can divide both the numerator and denominator by their greatest common divisor, which is 4 in this case:

92 / 24 = (92 ÷ 4) / (24 ÷ 4)

= 23 / 6

So, the solution to the equation 0.8 × 2 1/12 + 2 1/6 is 23/6 or 3 5/6.