1. calculeaza: a) 2/3:4/9;
b) 1/8:3/4;
c) 3/5:2/5;
d) 7/2:1/4;
e) 12/5:3;
f) 77/27:33/12;
g) 7 2/10:18/25; (Adică 7 întregi si 2 supra 10 : 18 supra 25)
h) 9/12:2 9/18
Dau c o r o a n a !​