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

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

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

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

$3)37ttdisplaystylefrac{6}{7}-19frac{2}{7}=18frac{4}{7}$

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

5)$ttdisplaystylefrac{21060}{77}:frac{26}{77}=frac{21060}{77}*frac{77}{26}=810$

$6)810*ttdisplaystylefrac{1}{405}=810:405=2$