Question

Diketahui milai a=3/4,b=5/6dan c=5/9,tentukan nilai dari:
a.(a+b)-(b+c)
b.(a pangkat 2 xc) :(c-b)
c.a+b/a+c-b

Answer 1

A. (a+b) - (b+c) = (3/4 + 5/6) - (5/6 + 5/9)
                       = 19/12 - 25/18 = 7/36
b. (3/4)² x (5/9) : (5/9-5/6) = 9/16 x 5/9 :-5/8 = -25/128
c. 3/4+5/6 / 3/4+5/9-5/6 = 19/12 / 17/36 = 57/17