Question

0,2(3) + 0,5(6) x 0,7 = ?

Cu rezolvare nu rezultat direct va rog mult ! Dau coronita!!!!!!

Answer 1

0,2(3)=(23-2)/90=21/90=7/30
0,5(6)=(56-5)/90=51/90=17/30
17/30 × 7/10 =119/300
7/30 + 119/300 = (7×10+119)/300 = 189/300 = 63/100 = 0,63

Answer 2

0,2(3)=(23-2)/90=21/90=7/30
0,5(6)=(56-5)/90=51/90=17/30
0,7=7/10
7/30+17/30x7/10=7/30+119/300 amplificam pe 7/30 cu 10 
70/300+119/300=189/300=63/100