Question

1. 7 2/11-(4 5/7-8 9/11)

Answer 1

Ответ:

см. фото.....................

Answer 2

To simplify the expression 7 2/11 - (4 5/7 - 8 9/11), you can follow these steps:

Step 1: Subtract the second expression inside the parentheses: 4 5/7 - 8 9/11

To subtract mixed numbers, you'll want to find a common denominator, which in this case is 77 (the least common multiple of 7 and 11).

(4 * 11/11) - (8 * 7/7) + (5/7 - 9/11)

Now, the expression becomes:

(44/77) - (56/77) + (5/7 - 9/11)

Step 2: Subtract the fractions within the parentheses:

(44/77) - (56/77) + [(5 * 11/11) - (9 * 7/7)]/77

Simplify further:

(44/77) - (56/77) + (55/77 - 63/77)

Step 3: Continue simplifying:

Now, subtract the fractions:

(44/77 - 56/77) + (55/77 - 63/77)

-12/77 + (-8/77)

Step 4: Add the two fractions:

-12/77 - 8/77

Step 5: Combine the fractions:

-20/77

So, the simplified expression is -20/77.