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9x7+7X5-1/7x6+4

 Mar 10, 2015

Best Answer 

 #2
avatar+118723 
+5

9x7+7X5-1/7x6+4

 

not quite anon.

divide is just as important as multiply  and dsince it comes first you must do it first.

 

$$\\9\times 7+7\times 5-1/7\times 6+4\\\\
=63+7\times 5-\frac{1}{7}\times 6+4\\\\
=63+35-\frac{6}{7}+4\\\\
=63+35+4-\frac{6}{7}\\\\
=102-\frac{6}{7}\\\\
=101\;\frac{1}{7}\\\\$$

 

 

$${\mathtt{9}}{\mathtt{\,\times\,}}{\mathtt{7}}{\mathtt{\,\small\textbf+\,}}{\mathtt{7}}{\mathtt{\,\times\,}}{\mathtt{5}}{\mathtt{\,-\,}}{\frac{{\mathtt{1}}}{{\mathtt{7}}}}{\mathtt{\,\times\,}}{\mathtt{6}}{\mathtt{\,\small\textbf+\,}}{\mathtt{4}} = {\frac{{\mathtt{708}}}{{\mathtt{7}}}} = {\mathtt{101.142\: \!857\: \!142\: \!857\: \!142\: \!9}}$$

 Mar 11, 2015
 #1
avatar
0

9x7+7X5-1/7x6+4

Divide and multiply before you add and subtract.

$${\frac{\left({\mathtt{63}}{\mathtt{\,\small\textbf+\,}}{\mathtt{35}}{\mathtt{\,-\,}}{\mathtt{1}}\right)}{\left({\mathtt{42}}{\mathtt{\,\small\textbf+\,}}{\mathtt{4}}\right)}} = {\frac{{\mathtt{97}}}{{\mathtt{46}}}} = {\mathtt{2.108\: \!695\: \!652\: \!173\: \!913}}$$

 Mar 10, 2015
 #2
avatar+118723 
+5
Best Answer

9x7+7X5-1/7x6+4

 

not quite anon.

divide is just as important as multiply  and dsince it comes first you must do it first.

 

$$\\9\times 7+7\times 5-1/7\times 6+4\\\\
=63+7\times 5-\frac{1}{7}\times 6+4\\\\
=63+35-\frac{6}{7}+4\\\\
=63+35+4-\frac{6}{7}\\\\
=102-\frac{6}{7}\\\\
=101\;\frac{1}{7}\\\\$$

 

 

$${\mathtt{9}}{\mathtt{\,\times\,}}{\mathtt{7}}{\mathtt{\,\small\textbf+\,}}{\mathtt{7}}{\mathtt{\,\times\,}}{\mathtt{5}}{\mathtt{\,-\,}}{\frac{{\mathtt{1}}}{{\mathtt{7}}}}{\mathtt{\,\times\,}}{\mathtt{6}}{\mathtt{\,\small\textbf+\,}}{\mathtt{4}} = {\frac{{\mathtt{708}}}{{\mathtt{7}}}} = {\mathtt{101.142\: \!857\: \!142\: \!857\: \!142\: \!9}}$$

Melody Mar 11, 2015

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