Question

3x4x7

---------- =

3x10x8

Answer 1

\(\dfrac{3x4x7}{3x10x8}=\dfrac{84}{240}\)

Answer 2

\(\dfrac{3\times4\times7}{3\times10\times8}=\)\(\dfrac{3\times4\times7}{3\times10\times2\times4}=\dfrac{3\times7}{10\times2}=\dfrac{21}{20}\)

Answer 3

= 21/20 nha

Answer 4

Đáp án:

3 x 4 x 7            84             7

-------------   =  ---------- =   ------

3 x 10 x 8         240           20