Tính: 15/16 : 3/8 x 3/4

* Hướng dẫn giải

$\frac{15}{16}:\frac{3}{8}x\frac{3}{4}\mathit{=}\frac{\mathit{15}}{\mathit{16}}x\frac{\mathit{8}}{\mathit{3}}x\frac{\mathit{3}}{\mathit{4}}\mathit{=}\frac{\mathit{15}\mathit{ }\mathit{x}\mathit{ }\mathit{8}\mathit{ }\mathit{x}\mathit{ }\mathit{3}}{\mathit{16}\mathit{ }\mathit{x}\mathit{ }\mathit{3}\mathit{ }\mathit{x}\mathit{ }\mathit{4}}\mathit{=}\frac{\mathit{15}}{\mathit{2}\mathit{ }\mathit{x}\mathit{ }\mathit{4}}\mathit{=}\frac{\mathit{15}}{\mathit{8}}$