Question

Evaluate using the order of operation, please help me​

Answer 1

`(7)/(9)`

Explanation:

`1-(4)/(2\cdot \:7+4)\\\\(4)/(2\cdot \:7+4) = (2)/(9) \\\\=1-(2)/(9)\\\\\mathrm{Convert\:element\:to\:fraction}:\quad \:1=(1\cdot\:9)/(9)\\\\=(1\cdot \:9)/(9)-(2)/(9)\\\\Since\:the\:denominators\:are\:equal,\\\:combine\:the\:fractions}:\\\\\quad (a)/(c)\pm (b)/(c)=(a\pm \:b)/(c)\\\\=(1\cdot \:9-2)/(9)\\\\1\cdot \:9-2 =7\\\\=(7)/(9)`