Question

tinh bang hai cach 

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

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

Answer 1

C1:

= 7/12 * 1/6

= 7/72

C2:

=1/3 * 1/6 + 1/4 * 1/6 

=7/72

Answer 2

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

Answer 3

tính bằng hai cách :

( 1/3 + 1/4 ) * 1/6 

Cách 1 :

( 1/3 + 1/4 ) * 1/6 

= 7/12 * 1/6

= 7/72

Cách 2 :

( 1/3 + 1/4 ) * 1/6 

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

= 1/18 + 1/24

= 4/72 + 3/72

= 7/72 

tk mk nha 

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Answer 4

B1:\(\left(\frac{1}{3}+\frac{1}{4}\right).\frac{1}{6}=\frac{7}{12}.\frac{1}{6}=\frac{7}{2}\)

B2:\(\left(\frac{1}{3}-\frac{1}{4}\right).\frac{1}{6}=\frac{1}{12}.\frac{1}{6}=\frac{1}{2}\)

K mình nhé