Question

Efetue as operações.
1 7/8+1/4-1/2
12/5.10/3.2/4
100/7:5/49
(4/3-1):2/3
6/7+(1/2-2/5).5
[(2/3+2).1/5]:1/2​

Answer 1

Resposta:

Explicação passo a passo:

1 7/8 +1/4 -1/2=

(8/8+7/8) +1/4 -1/2=

15/8 +1/4 -1/2=

15/8 + 2/8 - 4/8=

13/8

12/5.10/3.2/4=

240/60=

4

100/7:5/49=

100/7.49/5=

4900/35=

140

(4/3-1):2/3=

(4/3-3/3):2/3=

1/3:2/3=

1/3.3/2=

3/6=[simplifica por 3]

1/2

6/7+(1/2-2/5).5=

6/7+(5/10-4/10).5=

6/7+1/10.5=

6/7 +5/10=

60/70+35/70=

95/70= [simplifica por 5]

19/14

[(2/3+2).1/5]:1/2=

[(2/3+6/3).1/5]:1/2=

[12/9.1/5]:1/2=

12/45:1/2=

12/45.2/1=

24/45= [ simplifica por 3]

8/15