Question

-0,8(3)+7\4-0,3(8)+0,375=?

Answer 1

-0,(8)= -8/9
-0,3(8)= - 38-3/90=35/90simplifici prin 5=7/18
+0,375=375/1000=75/200=15/40
- 8/9+7/4-7/18+15/40=
- 32/36+63/36-14/36+15/40=
+31/36-14/36+15/40=
17/36amplifici cu 40+15/40amplifici cu 36 =
680/1440+540/1440=680+540/1440=
1320/1440=132/145=66/72=33/36=11/12
Sper ca te-am ajutat!!:)