Question

va rog dau coroana mersi anticipat ​

Answer 1

Răspuns:

3/8=6/16

3·16=8·6

48=48 (adevarat)

________

3/8=9/64

3·64=8·9

192≠72 ( fals)

____________

3a/8a=3/8

3a·8=3·8a

24a=24a (adevarat)

sau simplifici a cu a

____________

12b/32b=3/8

12b·8=32b·3

96b=96b (adevarat)

___________

(3+c)/8c=3/8

8(3+c)=3·8c

24+8c=24c

24=24c-8c=>c=24/16=>c=3/2 (fals)