Question

12*(11/12-9/10) 5/9*3+(4/5-2/3)*5

Answer 1

Вот так вот,извиняюсь за почерк

Answer 2

Let's break down each part of the expression step by step:

1. 12 * (11/12 - 9/10): First, simplify the expression inside the parentheses: (11/12 - 9/10) = (55/60 - 54/60) = (1/60)

   Now, multiply it by 12: 12 * (1/60) = 12/60 = 1/5

2. 5/9 * 3 + (4/5 - 2/3) * 5: First, simplify each part separately:

   a. 5/9 * 3 = (5/9) * 3 = 15/9 = 5/3

   b. (4/5 - 2/3): To find a common denominator, multiply 5 and 3 to get 15: (4/5) * (3/3) - (2/3) * (5/5) = (12/15 - 10/15) Now, subtract the fractions: (12/15 - 10/15) = (2/15)

   c. Now, multiply the result from step b by 5: (2/15) * 5 = 10/15 = 2/3

Now, add the results from step a and step c together:

5/3 + 2/3 = (5/3 + 2/3) = 7/3

So, the final result of the expression is:

1/5 + 7/3 = (1/5) + (7/3)

To add these fractions, find a common denominator, which is 15:

(1/5) * (3/3) + (7/3) * (5/5) = 3/15 + 35/15 = (3 + 35)/15 = 38/15

So, the final result is 38/15.