Question

Oblicz:
5 1/3 + 7 2/3 =
4 1/7 + 2 1/3 =
5 7/8 - 2 1/4 =
( 6 7/8 + 2 1/3 ) - 5 =
5 1/3 x 2 1/3 - 2 1/2 =
5 1/2 : 2 1/3 - 1 1/2 =
( 11 1/2 - 2 3/4 ) x 6 1/2 =
( 7 1/3 - 2 1/2 ) + 5 1/3 =

Daję naj - dziękuje

Answer 1

5 1/3 + 7 2/3 = 12 3/3 = 13

4 1/7 + 2 1/3 = 
= 4 3/21 + 2 7/21 = 6 10/21

5 7/8 - 2 1/4 = 
= 5 7/8 - 2 2/8 = 3 5/8

( 6 7/8 + 2 1/3 ) - 5 =
= 6 21/24 + 2 8/24 - 5 = 8 29/24 - 5 =
= 9 5/24 - 5 = 4 5/24

5 1/3 x 2 1/3 - 2 1/2 = 
= 16/3 * 7/3 - 2 1/2 = 112/9 - 2 1/2 =
= 12 4/9 - 2 1/2 = 12 8/18 - 2 9/18 =
= 11 26/18 - 2 9/18 = 9 17/18

5 1/2 : 2 1/3 - 1 1/2 =
= 11/2 : 7/3 - 1 1/2 = 11/2 * 3/7 - 1 1/2 =
= 33/14 - 1 1/2 = 2 5/14 - 1 7/14 = 1 19/14 - 1 7/14 = 12/14 = 6/7

( 11 1/2 - 2 3/4 ) x 6 1/2 =
= (11 2/4 - 2 3/4) * 13/2 =
= (10 6/4 - 2 3/4) * 13/2 = 8 3/4 * 13/2 =
= 35/4 * 13/2 = 455/8 = 56 7/8

( 7 1/3 - 2 1/2 ) + 5 1/3 =
= 7 2/6 - 2 3/6 + 5 2/6 = 12 4/6 - 2 3/6 = 10 1/6

Answer 2

13
6 i 10/21
3 i 5/8
4 i 5/24
34 i 5/6
6/7
56 i 7/8
10 i 1/6

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