Question

(8/54-1/27)+4 11/16×2 7/9=​

Answer 1

Ответ:

$(\frac{8}{54}-\frac{1}{27} )+4\frac{11}{16}*2\frac{7}{9}=13\frac{19}{144} .$

1) $\frac{8}{54}-\frac{1}{27}= \frac{4}{27}-\frac{1}{27}=\frac{3}{27}=\frac{1}{9}.$

2) $4\frac{11}{16}*2\frac{7}{9}=\frac{16*4+11}{16} *\frac{2*9+7}{9} =\frac{75}{16} *\frac{25}{9} =\frac{25}{16} *\frac{25}{3} =\frac{625}{48}.$

3) $\frac{1}{9}+\frac{625}{48}=\frac{1*16+625*3}{144} = \frac{16+1875}{144} =\frac{1891}{144}=13\frac{19}{144} .$