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bapak = 1/3
ibu = 1/3
nenek = 1/3
kemudia, nenek membagi 1/3 bagiannya menjadi 4
1/3:4
=1/12
susi mendapat 3 dari 4 bagian, jadi,
1/12 x 3 = 3/12 (b)
16. 2^3 x 8^2 x 1/16
= 2^3 x (2^3)^2 x 2^-4
= 2^3 x 2^6 x 2^-4
= 2^3+6+(-4)
= 2^5 (d)
17. 16%
=16/100
masing-masing d bagi 4
=4/25 (a)
18. -75+36:(-12)-4
= -75 - 3 - 4
= -82 (d)