Question

coloquem a conta tbm​

Answer 1

Resposta:

Explicação passo a passo:

A) -2/5 -0,25 = -2/5 - 1/4 = -8-5/20 = -13/20.

4 1/4= 4+1/4 = 17/4.

4,1-4 1/4 = 4,1-17/4 , 4,1=16,4/4

16,4/4 -17/4= -0,6/4= -0,3/2.= -3/20

B)

5 3/4-0,18. 5 3/4 = 5+3/4= 23/4.

0,18= 18/100.

Assim:

23/4 - 18/100 ,  23/4 *25/25 = 575/100

575/100-18/100 = 557/100= 5,57.

4,1- 4 1/4= -3/20 = -0,15