Question

Tolong Jawab Dong Kak Dari Nomor 13 Sampai 18

Answer 1

13) 3,2 + 4,5 - 2 1/2
= 32/10 + 45/10 - 5/2
disamakan penyebutnya

32 + 45 - 5 32 + 45 - 25 77 - 25 52
---------------- = ----------------- = ---------- = ---- = 5,2
10 10 2 10 10 10


15) (3 2/5 + 8 1/4) : 0,25
= ( 17/5 + 33/4) : 25/100 = 1/4
= 17 + 33 68 + 165 233 4 233
----------- = -------------- = ------- x ---- = ------
5 4 20 20 1 5

3
= 46 --
5