Question

5 - 4/5 - 1целых 4/9​

Answer 1

Ответ:

2 34/45.

Пошаговое объяснение:

5 - 4/5 - 1 4/9​ = 2 34/45.

1. 5 - 4/5 = 4 5/5 - 4/5 = 4 1/5.

2. 4 1/5 - 1 4/9​ = 4 9/45 - 1 20/45​ = 3 54/45 - 1 20/45​ = 2 34/45.

Answer 2

To simplify the expression 5 - 4/5 - 1 and then add 4/9 to it, you can follow these steps:

Step 1: Simplify the expression 5 - 4/5 - 1:

5 - 4/5 - 1 = 5 - (4/5) - 1

To subtract fractions, they must have a common denominator. In this case, the common denominator is 5. So, rewrite 1 as 5/5:

5 - (4/5) - 1 = 5 - (4/5) - (5/5)

Now, all fractions have the same denominator:

5 - 4/5 - 5/5 = 5 - 4/5 - 1

Now, combine the fractions:

(5 - 5)/5 - 4/5 = 0/5 - 4/5 = -4/5

Step 2: Add 4/9 to the result:

-4/5 + 4/9

To add fractions, they must have a common denominator. In this case, the common denominator is 45 (the least common multiple of 5 and 9). So, rewrite both fractions with a common denominator of 45:

(-4/5) * (9/9) + (4/9) * (5/5) = (-36/45) + (20/45)

Now, add the fractions:

(-36/45) + (20/45) = (-36 + 20)/45 = -16/45

So, the final result is -16/45.