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Puteți pana marți dau coroana, va roggg, coroana+20 puncte VA ROGGG REPEDE URGENTT

Puteți Pana Marți Dau Coroana Va Roggg Coroana20 Puncte VA ROGGG REPEDE URGENTT class=

Răspuns :

Răspuns:

Explicație pas cu pas:

a)

1/48 + 5/64 + 1/96 = 2/96 + 1/96 + 5/64 = 3/96 + 5/64 = 1/32 + 5/64

= 2/64 + 5/64 = 7/64

1 - 1/8 = 8/8 - 1/8 = 7/8

7/64 : 7/8 = 7/64 * 8/7 = 1/8

1 + 1/8 = 8/8 + 1/8 = 9/8

72*9/8 = 9*9 = 81

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b)

1/7 + 1/2 : 7/2 = 1/7 + 1/2 *2/7 = 1/7 + 1/7 = 2/7

1 : 2/7 = 1*7/2 = 7/2

1/3 + 7/2 = 2/6 + 21/6 = 23/6

12/23 *23/6 = 2

1/3 + 2 = 1/3 + 6/3 = 7/3

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c)

1 + 3/4 = 4/4 + 3/4 = 7/4

5/2 - 7/4 = 10/4 - 7/4 = 3/4

3/4 : 7/8 = 3/4*8/7 = 6/7

1/4 + 6/7 = 7/28 + 24/28 = 31/28

31/28 : 1/14 = 31/28*14 = 31/2

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e)

1/3 : 3 = 1/3*1/3 = 1/9

1/3 + 1/9 = 3/9+ 1/9 = 4/9

1/4*4/9 = 1/9

8/9 + 1/9 = 9/9 = 1

10*1 = 10

1 + 10 = 11

2*11 = 22

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