8 x 3/4 : 13/4
= 6 x 13/4
= 24/13
Vậy : 8 x 3/4 : 13/4 = 24/13
-_-
\(8\times\frac{3}{4}:\frac{13}{4}=6:\frac{13}{4}=6\times\frac{4}{13}=\frac{24}{13}\)
8.3/4 : 13/4
= 6 . 13/4
= 24/13
=>
8.3/4 : 13/4 = 34/13
\(8x\frac{3}{4}:\frac{13}{4}=8x\frac{3}{4}x\frac{4}{13}=\frac{8x3x4}{4x13}=\frac{24}{13}\)
Vậy ...
8 * 3 / 4 : 13 / 4 = 8 * 3 / 4 * 4 / 13 = (8*3*4) / (4*13) = (8*3) / 13 = 24 / 13 = 1 / 11 / 13
duyet nha