12/35:x=8/21,atunci x=...?

/= supra


Răspuns :

12/35:x=8/21,atunci x=?
12/35
·1/x=8/21
x=(12·21) / (8·35) =9/10=0,9
12/35:x=8/21
D:I=C
I=D:I
x=12/35:8/21
x=12/35×21/8
simplificând 21 cu 35 prin 7
8 cu 12 Rin 4
x=9/10
x=0,9