Question

Решить два ! если можно с объяснением! 1.(3/4+1/6): 3+(5/6-1/2): 9 2. (3/4-5/12)*3-1/16: 1/8 заранее !

Answer 1

1.   $(\frac{9}{12}+\frac{2}{12}):\frac{3}{1}+( \frac{10}{12}-\frac{6}{12}):\frac{9}{1}=\frac{11}{12}:\frac{3}{1}+\frac{4}{12}:\frac{9}{1}=\frac{11}{12}*\frac{1}{3}+\frac{1}{3}*\frac{1}{9}$
$\frac{11}{36}+ \frac{1}{27}= \frac{33}{108}+ \frac{4}{108}= \frac{37}{108}$

2.   $(\frac{9}{12}- \frac{5}{12})* \frac{3}{1}- \frac{1}{16}* \frac{8}{1}= \frac{4}{12}* \frac{3}{1}- \frac{8}{16}= \frac{12}{12}- \frac{1}{2}=1- \frac{1}{2}= \frac{1}{2}=0,5$