Question

2 3/4 : (1 1/2 - 2/5) + (3/4 + 5/6): 3 1/6=

Answer 1

11/4:(11/10) + (19/6):19/6= 5/2+1=2,5+1=3,5
должно быть так!

Answer 2

To solve this expression, we'll follow the order of operations (PEMDAS/BODMAS) to simplify it step by step:

Step 1: Evaluate the expressions within parentheses first.

(1 1/2 - 2/5) = (3/2 - 2/5)

To subtract fractions, we need to find a common denominator. In this case, the common denominator is 10.

(3/2 - 2/5) = (15/10 - 4/10) = 11/10

(3/4 + 5/6) = (9/12 + 10/12)

To add fractions, we need a common denominator. In this case, the common denominator is 12.

(9/12 + 10/12) = (19/12)

Step 2: Simplify the expression further.

2 3/4 : 11/10 + 19/12 : 3 1/6

To divide fractions, we invert the second fraction and multiply.

2 3/4 : 11/10 = (11/10) * (4/19) = 44/190

19/12 : 3 1/6 = 19/12 : (19/6) = (19/12) * (6/19) = 1/2

Step 3: Perform addition.

44/190 + 1/2

To add fractions, we need a common denominator. The common denominator is 380.

(44/190 + 1/2) = (88/380 + 190/380) = 278/380

Step 4: Simplify the fraction.

278/380 = 139/190

Therefore, 2 3/4 : (1 1/2 - 2/5) + (3/4 + 5/6) : 3 1/6 = 139/190