
David W. answered 09/01/15
Tutor
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(90)
Experienced Prof
(5-13/6+2/3)/(5/7-10-6/5)*2/5
My working is as follows:
=(-8/6+2/3)/(5/7-4/5)*2/5 (no, 5=30/6, it's not 5/6; and -50/5 - 6/5 = -56/5)
=(-4/3+2/3)/(-3/35*2/5)
=-2/3 / -6/175
=-2/3 * -175/6
=175/9
My working is as follows:
=(-8/6+2/3)/(5/7-4/5)*2/5 (no, 5=30/6, it's not 5/6; and -50/5 - 6/5 = -56/5)
=(-4/3+2/3)/(-3/35*2/5)
=-2/3 / -6/175
=-2/3 * -175/6
=175/9