Question

ПОМОГИТЕ ПЖ!!! Г) 2 4/5 * 5/8 - 1 1/5 * 5/8 Д) 5 5/7 * 5/12 * 5 1/4 * 6\7 : 1 1/2

Answer 1

Г) 40/40=1
д)7 1/7
ответы

Answer 2

Calculation: G) 2 4/5 * 5/8 - 1 1/5 * 5/8 D) 5 5/7 * 5/12 * 5 1/4 * 6/7 : 1 1/2

To solve this calculation, let's break it down step by step:

G) 2 4/5 * 5/8 - 1 1/5 * 5/8

First, let's simplify the multiplication and subtraction separately:

Multiplication: - 2 4/5 * 5/8 = (14/5) * (5/8) = 70/40 = 7/4

Subtraction: - 1 1/5 * 5/8 = (6/5) * (5/8) = 30/40 = 3/4

Now, let's subtract the result of the second calculation from the first:

7/4 - 3/4 = 4/4 = 1

So, G) 2 4/5 * 5/8 - 1 1/5 * 5/8 = 1.

D) 5 5/7 * 5/12 * 5 1/4 * 6/7 : 1 1/2

Let's simplify the multiplication and division separately:

Multiplication: - 5 5/7 * 5/12 = (40/7) * (5/12) = 200/84 = 25/12

- 5 1/4 * 6/7 = (21/4) * (6/7) = 126/28 = 9/2

Now, let's multiply the two results together:

(25/12) * (9/2) = (25 * 9) / (12 * 2) = 225/24 = 75/8

Division: - 75/8 : 1 1/2 = (75/8) / (3/2) = (75/8) * (2/3) = 150/24 = 25/4

So, D) 5 5/7 * 5/12 * 5 1/4 * 6/7 : 1 1/2 = 25/4.

Therefore, the final result is: G) 2 4/5 * 5/8 - 1 1/5 * 5/8 = 1 D) 5 5/7 * 5/12 * 5 1/4 * 6/7 : 1 1/2 = 25/4.

Please let me know if there's anything else I can help you with!