Question

(4 23/63 * 8 37/55 -16 1/5 : 21/25) * 14 8/11 : 26/77 * 1/405 как решить пример по этапно.Заранее спасибо...

Answer 1

$(4\tt\displaystyle\frac{23}{63}*8\frac{37}{55}-16\frac{1}{5}:\frac{21}{25})*14\frac{8}{11}:\frac{26}{77}*\frac{1}{405}=2$

$1)4\tt\displaystyle\frac{23}{63}*8\frac{37}{55}=\frac{275}{63}*\frac{477}{55}=\frac{2385}{63}=37\frac{54}{63}=37\frac{6}{7}$

$2)16\tt\displaystyle\frac{1}{5}:\frac{21}{25}=\frac{81}{5}:\frac{21}{25}=\frac{81}{5}*\frac{25}{21}=\frac{135}{7}=19\frac{2}{7}$

$3)37\tt\displaystyle\frac{6}{7}-19\frac{2}{7}=18\frac{4}{7}$

$4)18\tt\displaystyle\frac{4}{7}*14\frac{8}{11}=\frac{130}{7}*\frac{162}{11}=\frac{21060}{77}$

5)$\tt\displaystyle\frac{21060}{77}:\frac{26}{77}=\frac{21060}{77}*\frac{77}{26}=810$

$6)810*\tt\displaystyle\frac{1}{405}=810:405=2$