Question

[Lê Thị Thu Phương]

tinh bang hai cach 

(1/3 + 1/4) * 1/6

(1/3 - 1/4) *1/6

Answer 1

[[A]ȵȟ•βê•ʠǔá♡]

C1:

= 7/12 * 1/6

= 7/72

C2:

=1/3 * 1/6 + 1/4 * 1/6 

=7/72

Answer 2

[Nguyễn Thị Thu Huyền]

dễ ợt

=7/12*1/6=7/72

cách 2 :=1/3*1/6+1/4*1/6=1/18+1/24=7/72

=1/12*1/6=1/72

cách 2:1/3*1/6-1/4*1/6=1/18-1/24=1/72