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cari KPK dari 2 , 3 dan 4 = 12
ronda bersama" hari senin
ronda bersama" lagi hari senin + 12 hari lagi = sabtu
jawaban D
no 12)
jawaban yg B
ingat jika pembilang sama , maka penyebutnya yg besar itu nilainya yg kecil
no 13)
3 5/8 + 1 2/3 - 2 3/4
= (3+1-2) + (5/8 + 2/3 - 3/4)
= 2 + ( 15/24 + 16/24 - 18/24)
= 2 13/24
jawaban A
no 14)
(2 1/4 x 0,2) +(1 1/2 : 2/3)
= 9/4 x 1/5 + 3/2 : 2/3
= 9/20 + 9/4
= 9/20 + 45/20
= 54/20
= 2 14/20
= 2 7/10
= 2,7
jawaban B
no 15)
1 - (1/4 + 1/10 + 2/5)
= 1 - (5/20 + 2/20 + 8/20)
= 1 - 15/20
= 1 - 3/4
= 1/4
1/4 x 20 = 5
jawaban B