− 4 ⋅ 5 8 + 1 2 3 ⋅ ( − 9 10 ) = −4⋅ 8 5 +1 3 2 ⋅(− 10 9 )=

Question

﻿
−
4
⋅
5
8
+
1
2
3
⋅
(
−
9
10
)
=
−4⋅ 
8
5
​
 +1 
3
2
​
 ⋅(− 
10
9
​
 )=﻿

Accepted Answer

-4 * (5/8) + 1(1/3) * (-9/10).

Выполним первое умножение.

-4 * (5/8) = -5/2 = -2,5.

Выполним второе умножение.

1(1/3) * (-9/10) = (4/3) * (-9/10) = -6/5 = -1,2.

Выполним сложение.

-2,5 + (-1,2) = -3,7.

Ответ: -3,7.

﻿ − 4 ⋅ 5 8 + 1 2 3 ⋅ ( − 9 10 ) = −4⋅ 8 5 ​ +1 3 2 ​ ⋅(− 10 9 ​ )=﻿