pls ( dau coroana)!! ajutati-ma!!

Pls Dau Coroana Ajutatima class=

Răspuns :

c)1,5=15/10=3/2
0,(6)=6/9=2/3
x=2/3*3/2
x=6/6
x=1
d)x=5/4-3/4
x=2/4
x=1/2