Question

11.Efectueaza:2 1/2+3,(3)/2,5-1 1/3:4,6-2 1/3/4 3/5+2,(3)

Answer 1

2 intregi 1/2=5/2
3,(3)=(33-3)/9=30/9=10/3
2,5=25/10=5/2
1 intreg 1/3=4/3
4,6=46/10=23/5
2 întregi 1/3=7/3
5/2+10/3×2/5-4/3×5/23-7/3×1/4=5/2+4/3-20/69-7/12 amplificam pe 5/2 cu 6 si pe 4/3 cu 4
30/12+16/12-20/69-7/12=39/12-20/69 amplificam pe 39/12 cu 23 si pe 20/69 cu 4
897/276-80/276=817/276