tolong jawab soal nomor 9 dan 10 beserta caranyaa

9. (3 1/2 × 2 2/5) - (0,35 : 1/2) - 6
= (7/2 × 12/5) - (35/100 × 2/1) - 6
= 42/5 - 7/10 - 6
= 84/10 - 7/10 - 60/10
= 17/10 = 1 7/10

Jawaban: C

10.Diubah jadi pecahan desimal:
(i) 5/6 = 0,833
(ii) 7/8 = 0,875
(iii) 6/7 = 0,857
(iv) 8/9 = 0,889

Jawaban: D