Question

ayuda en esto
b) 7+ 2/3 ÷ 2 5/6
c) ( 3/5 + 1/2 + 2 ) ÷ (3- 1 1/5 )
d) 2- 2/3 ÷ ( 1 - 1/5

Answer 1

7+ 2/3 ÷ 2 5/6
7 + 2/3 ÷ (2 * 6 + 5)/6
7 + 2/3 ÷ (12 + 5)/6
7 + 2/3 ÷ 17/6
(2 + 3 * 7)/3/17/6
(2 + 21)/3/17/6
23/3/17/6
138/51
46/17

Solución : 

46/17
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( 3/5 + 1/2 + 2 ) ÷ (3- 1 1/5 )
(3/5 + 1/2 + 2) ÷ (3 - (1 * 5 + 1)/5)
(3/5 + 1/2 + 2) ÷ (3 - (5 + 1)/5)
(3/5 + 1/2 + 2) ÷ 3 - 6/5
(3/5 + 1/2 + 2) ÷ (3 * 5 - 3)/5
(3/5 + 1/2 + 2) ÷ (15 - 3)/5
(3/5 + 1/2 + 2) ÷ 12/5
(2 * 3 + 5 + 5 * 2)2/10/12/5
(6 + 5 + 10 * 2)/10/12/5
(11 + 20)/10/12/5
31/10/12/5
155/120
31/24

Solución : 

21/24
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2- 2/3 ÷ ( 1 - 1/5
(2 * 3 - 2)/3 ÷ (1 * 5 - 1)/5
(6 - 2)/3 ÷ (5 - 1)/5
4/3 ÷ 4/5
4/3 * 5/4
(4 * 5) / (3 * 4)
20/12
5/3

Solución : 

5/3

Answer 2

Ahí te va la solución....