Question

[Nguyễn Ngọc Hà My]

Tính 

4x5x6/12x15x9

6x8x11/33x16

giúp mình với

Answer 1

[Emma]

\(\frac{4\times5\times6}{12\times15\times9}\)\(=\frac{2\times2\times5\times6}{2\times6\times3\times5\times9}\)\(=\frac{2}{3\times9}\)\(=\frac{2}{27}\)

\(\frac{6\times8\times11}{33\times16}\)\(=\frac{2\times3\times8\times11}{3\times11\times8\times2}\)\(=\)\(1\)

~ HOK TỐT ~

Answer 2

[Quyền Trần Văn]

 

$\genfrac{}{}{0ex}{}{4\times 5\times 6}{12\times 15\times 9}$$=\genfrac{}{}{0ex}{}{2\times 2\times 5\times 6}{2\times 6\times 3\times 5\times 9}$$=\genfrac{}{}{0ex}{}{2}{3\times 9}$$=\genfrac{}{}{0ex}{}{2}{27}$

$\genfrac{}{}{0ex}{}{6\times 8\times 11}{33\times 16}$$=\genfrac{}{}{0ex}{}{2\times 3\times 8\times 11}{3\times 11\times 8\times 2}$$=$$1$