Question

-3/35-(+2/21)-(11/12)-(8/63)
Urgent va rog

Answer 1

Răspuns:

-3/35-(+2/21)-(11/12)-(8/63)=

35=7×5

21=7×3

12=4×3

63=3^2×7

Numitor comun :

4×5×7×9=1260

-3/35 amplific cu 36

2/21 amplific cu 60

11/12 amplific cu 105

8/63 amplific cu 20

36×(-3/35)-60×(+2/21)-105×(11/12)-20×(8/63)=

-108/1260 -(120/1260)-1155/1260-160/1260=

-109-120-1155-160=

-1544/1260= |:4

-356/315

Explicație pas cu pas: