Question

( 1 17/18 * 1 13/14 - 2 5/8 ) : ( 2 25/78 - 1 1/26 )найдите значение выражения

Answer 1

1) 1 17/18 * 1 13/14 = 35/18 * 27/14 = 5/2 * 3/2 = 15/4 = 3 3/4
2) 3 3/4 - 2 5/8 = 1 6/8 - 5/8 = 1 1/8
3) 2 25/78 - 1 1/26 = 1 50/156 - 6/156 = 1 44/156 = 11/39 
4) 1 1/8 : 11/39 = 9/8 : 50 = 9/8 * 1/50 = 9/400
ну вот так вроде бы..... 

Answer 2

Calculating the Expression

To find the value of the expression 1 17/18 * 1 13/14 - 2 5/8, we can perform the following steps:

1. Convert the mixed numbers to improper fractions. 2. Perform the multiplication and subtraction operations.

Conversion to Improper Fractions

The mixed numbers can be converted to improper fractions as follows: - 1 17/18 = (18 * 1 + 17)/18 = 35/18 - 1 13/14 = (14 * 1 + 13)/14 = 27/14 - 2 5/8 = (8 * 2 + 5)/8 = 21/8

Performing the Operations

Now, we can perform the multiplication and subtraction: - Multiplication: (35/18) * (27/14) = 945/252 - Subtraction: (945/252) - (21/8) = 945/252 - 661/252 = 284/252 = 71/63

Therefore, the value of the expression 1 17/18 * 1 13/14 - 2 5/8 is 71/63.