Question

(2/15 + 1 целая 7/12)*30/103 - 2:2 целых 1/4*9/32+2 целых 1/3 =

Answer 1

1) 2/15 + 1 7/12 = 8/60 + 1 35/60 = 1 целая 43/60
2) 1 43/60* 30/103= 1/2
3) 2 : 2 1/4= 9/2 = 4 целых 1/2
4)  4 1/2* 9/32= 81/64 = 1 целая 17/64 
5) 1/2 - 1 17/64  =  - 49/64 
6) - 49/64 + 2 1/3 = Прости пол часа думаю дореши сам сори(         

Answer 2

To solve the expression, let's break it down step by step:

Step 1: Convert mixed numbers to improper fractions. 1 целая 7/12 can be converted to (12 + 7)/12 = 19/12. 2 целых 1/4 can be converted to (2 * 4 + 1)/4 = 9/4. 2 целых 1/3 can be converted to (2 * 3 + 1)/3 = 7/3.

Step 2: Perform the division operations first. 2:2 can be simplified to 1. 9/32 ÷ 1/4 can be simplified to (9/32) * (4/1) = (9 * 4)/(32 * 1) = 36/32 = 9/8.

Step 3: Perform the multiplication operations. (2/15 + 19/12) * (30/103) - (9/8 + 7/3) = [(2 * 12 + 19)/12] * (30/103) - [(9/8) + (7/3)] = (43/12) * (30/103) - (9/8 + 7/3) = (1290/3696) - (27/24 + 56/24) = (1290/3696) - (83/24) = (430/1232) - (83/24).

Step 4: Find a common denominator for the subtraction. The common denominator for 1232 and 24 is 1232. We need to adjust the fractions accordingly.

(430/1232) - (83/24) = [(430/1232) * (3/3)] - [(83/24) * (51/51)] = (1290/3696) - (4233/1224) = (1290/3696) - (4233/1224).

Now, we can subtract the fractions: (1290/3696) - (4233/1224) = [(1290 * 1224) - (4233 * 3696)] / (3696 * 1224) = (1576560 - 15629728) / 4526784 = -14053168 / 4526784 = -3.10536.

Therefore, the value of the expression is approximately -3.10536.