Question

Jeszce jedno to samo zadanie tym razem czytelne ...

Answer 1

1/... + 1/... = 0,7

1/5 + 1/2 = 0,7

obliczenie

1/5 + 1/2=

= 2/10 + 5/10=

= 7/10=

= 0,7




..../..... + ..../....= 0,5

1/6 + 1/3 = 0,5

obliczenie :

1/6 + 1/3 = 

= 2/6 + 2/6=

= 3/6=

= 1/2=

= 5/10=

= 0,5




2/..... + ..../15= 1,2

2/5 + 12/15 = 1,2

obliczenie

2/5 + 12/15=

= 6/15 + 12/15=

= 18/15=

= 1 i 3/15=

= 1 i 1/5=

= 1 i 2/10=

= 1,2




...../2 + ..../5= 1,9

3/2 + 2/5= 1,9

obliczenie

3/2 + 2/5=

= 1 i 1/2 + 2/5=

= 1 i 5/10 + 4/10=

= 1 i 9/10=

= 1,9