Question

1,(3) + 1,2(5) = ? va roog ajutatima pentru ca eu nu inteleg

Answer 1

1,(3)=1 intreg; 3/9=1 intreg; 1/3=4/3 1,2(5)=1 intreg; 25-2/90= 1 intreg;23/90=113/90 4/3-113/90=120/90-113/90=7/90.