Вычисли ( 21 2 3 − 7 1 6 ) : 2 , 32 1 11 18 + 25 36 ⋅ 12 , 8 1 18 11 + 36 25 ⋅12,8 (21 3 2 −7 6 1 ):2,32

Question

Вычисли ﻿
(
21
2
3
−
7
1
6
)
:
2
,
32
1
11
18
+
25
36
⋅
12
,
8
1 
18
11
​
 + 
36
25
​
 ⋅12,8
(21 
3
2
​
 −7 
6
1
​
 ):2,32
​
 ﻿.

Accepted Answer

(21(2/3) – 7(1/6)) / 2,32.

21(2/3) – 7(1/6) = 65/3 – 43/6 = 130/6 – 43/6 = 87/6 = 14,5.

14,5/2,32 = 6,25.

Ответ: 6,25.

(1(11/18) + 25/36) * 12,8.

1(11/18) + 25/36 = 29/18 + 25/36 = 58/36 + 25/36 = 83/36 = 2(11/36).

83/36 * 12,8 = 83/36 * 64/5 = 5312/180 = 1328/45 = 29(23/45).

Ответ: 29(23/45).

Вычисли ( 21 2 3 − 7 1 6 ) : 2 , 32 1 11 18 + 25 36 ⋅ 12 , 8 1 18 11 + 36 25 ⋅12,8 (21 3 2 −7 6 1 ):2,32 .