Question

8 5/9+12 7/9-20 1/9 пж пж пж пж пж пж пж пж

Answer 1

Ответ:

8 5/9 + 12=20 5/9

7/9-20 1/9 =-19 6/9

Answer 2

Ответ:

1 целая 2/9

Пошаговое объяснение:

Answer 3

To calculate the expression, we need to perform addition and subtraction of mixed fractions. Let's break it down step by step:

First, let's add the two mixed fractions: 8 5/9 and 12 7/9.

To add fractions, we need to have a common denominator. In this case, the denominator is 9, which is already the same for both fractions.

8 5/9 + 12 7/9 = (8 + 12) + (5/9 + 7/9) = 20 + (5 + 7)/9 = 20 + 12/9

To simplify the fraction 12/9, we can divide both the numerator and denominator by their greatest common divisor, which is 3.

12/9 = (12 ÷ 3)/(9 ÷ 3) = 4/3

Now, we can continue with the addition:

20 + 4/3

To add a whole number and a fraction, we need to convert the whole number into a fraction with the same denominator as the fraction.

20 + 4/3 = (20 × 3)/3 + 4/3 = 60/3 + 4/3 = (60 + 4)/3 = 64/3

Now, let's subtract the resulting fraction 64/3 from the fraction 20 1/9.

20 1/9 - 64/3

Again, we need to convert the whole number 20 into a fraction with the same denominator as the fraction.

20 1/9 = (20 × 9)/9 + 1/9 = 180/9 + 1/9 = 181/9

Now, we can subtract the fractions:

181/9 - 64/3

To subtract fractions, we need to have a common denominator. In this case, the least common multiple (LCM) of 9 and 3 is 9.

181/9 - 64/3 = (181 × 3)/9 - (64 × 3)/3 = 543/9 - 192/9 = (543 - 192)/9 = 351/9

The resulting fraction, 351/9, can be simplified by dividing both the numerator and denominator by their greatest common divisor, which is 9.

351/9 = (351 ÷ 9)/(9 ÷ 9) = 39/1 = 39

Therefore, the final result of the expression 8 5/9 + 12 7/9 - 20 1/9 is 39.