Question

Wykonaj działania

6 2/3 * ( 0,25 + 1/5) = ........

1 5/9:1/3 * 0,75= ..........

3 1/3 - 1/3 * 0,6= ...........

3 4/9 - 1 2/3 * 1,8= ..........

4,5 * 5 5/9 +6,4 * 3/8=.............

1/5 to są ułamki zwykłe

Answer 1

20/3 * (1/4 + 1/5) = 20/3 * (5/20 + 4/20) = 20/3 * 9/20 = 3

 

14/9 : 1/3 * 3/4 = 14/9 * 3/1 * 3/4 = 7/2 = 3,5

 

10/3 - 1/3 * 3/5 = 10/3 -1/5 = 50/15 - 3/15 = 47/15 = 3 i 2/15

 

31/9 - 5/3 *9/5 = 31/9 - 3 = 31/9 - 27/9 = 4/9

 

9/2 * 50/9 + 32/5 * 3/8 = 25 + 12/5 = 125/5 + 12/5 = 137/5 = 27,4