Question

calcule a expressão 5/4 x (1/2)² + 5/7 : 15/2 =

Answer 1

5 x ( 1)² + 5 : 15 
4      2       7    2

5 x  1 + 5 .  2 
4     4    7   15

5 x  1 +  1 . 2 
4     4     7   3

5   +  2  
16     21


105+32  ==> 137
   336             336

Answer 2

Resposta:

137/336

Explicação passo-a-passo:

= 5/4 x (1/2)² + 5/7 : 15/2

= 5/4 . 1/4 + 5/7 . 2/15

= 5/16 + 5/15 (:5)/(:5) . 2/7

= 5/16 + 1/3 . 2/7

= 5/16 + 2/21

= (21.5 + 16.2)/336

= (105+32)/336

= 137/336

R.: 137/336

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16,21: 2

8,21: 2

4,21: 2

2,21: 2

1,21: 3

1,7: 7

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1,1 = 2.2.2.2.3.7 = 16.21 = 336