Question 449053
<pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi,
Note: 54/140 = 27/70 |Dividing both numerator and denominator by 2
However: Inadvertently the minus sign was ommitted.  Note Below
{{{ ((-6)(-9)) / ((5)(4)(-7)) - 2^3 = 54/-140 - 8 = -27/70 - 8 = -27/70 - 560/70 = -587/70}}}