Question

1) x=(10 1/10:40 2/5):20/33-3 3/4
2) y=(4-1 49/50 * 1 7/33) :16/25+3 1/2
помогите пожалуйста

Answer 1

$x=left(10frac1{10}:40frac25right):frac{20}{33}-3frac34=left(frac{101}{10}:frac{202}5right):frac{20}{33}-frac{15}4=\=frac{101}{10}cdotfrac5{202}cdotfrac{33}{20}-frac{15}4=frac{33}{80}-frac{300}{80}=-frac{267}{80}=-3frac{27}{80}\\y=left(4-1frac{49}{50}cdot1frac7{33}right):frac{16}{25}+3frac12=left(4-frac{99}{50}cdotfrac{40}{33}right)cdotfrac{25}{16}+frac72=$
$=left(4-frac{12}5right)cdotfrac{25}{16}+frac72=frac85cdotfrac{25}{16}+frac72=frac52+frac72=frac{12}2=6$