Question

punctul ,,d" va rog repede! dau coroană ​

Answer 1

In poza apar doua exercitii "d", asa ca le fac pe amadoua.

Primul:

(2 + 5/6) : 17/4 = (12/6 + 5/6) : 17/4 = 17/6 * 4/17 = 2/3

Al doilea:

3/14 * [23/6 - (2 si 1/3 + 1/6) : 15/7] = 4/7

3/14 * [23/6 - (7/3 + 1/6) : 15/7] = 4/7

3/14 * [23/6 - (14/6 + 1/6) * 7/15] = 4/7

3/14 * (23/6 - 15/6 * 7/15) = 4/7

3/14 * (23/6 - 7/6) = 4/7

3/14 * 16/6 = 4/7

3/14 * 8/3 = 4/7

4/7 = 4/7

Relatia este adevarata