Question

observand ca numitorul uneia dintre fractii este divizor al numitorului celeilalte fractii efectuati


4/15 + 2/3
16/93 + 6/31
7/32 - 1/16
23/42 - 5/14​

Answer 1

Răspuns:

4/15+2/3= 4/15+10/15= 14/15

2/3 o amplificam prin 5=10/15

16/93+6/31= 16/93+18/93= 34/93

6/31 o aplificam prin 3=18/93

7/32-1/16= 7/32-2/32= 5/32

1/16 o amplificam prin 2 =2/32

23/42-5/14= 23/42-15/42= 8/42

5/14 o amplifica prin 3=15/42

SPER CA TE-AM AJUTAT!