1.sederhanakan pembagian pecahan berikut! A.1/8: 1/2 D.2 1/5 : 4 2/3 B.9/14 :5/7 E.10 1/12 : 6 7/8 C.8 : 1 1/4 F. 12 6/7 :

1. a. 1/8 : 1/2
1/8 × 2/1
1/4 × 1/1
1/4

1. b. 9/14 : 5/7
9/14 × 7/5
9/2 × 1/5
9/10

1. c. 8 : 1 1/4
8 : 5/4
8 × 4/5
32/5
6 2/5

1. d. 2 1/5 : 4 2/3
11/5 : 14/3
11/5 × 3/14
33/70

1. e. 10 1/12 : 6 7/8
121/12 : 55/8
121/12 × 8/55
11/3 × 2/5
22/15
1 7/15

1. f. 12 6/7 : 7 8/9
90/7 : 71/9
90/7 × 9/71
810/497
1 313/497

2. a. (3/5 × 6 2/9) + (3 3/4 : 5/12)
(3/5 × 56/9) + (15/4 × 12/5)
(1/5 × 56/3) + (3/1 × 3/1)
(56/15) + (9)
(56+135)/9
191/9
21 2/9

2. b. (4 4/5 : 3 1/8) + (6 1/4 × 3 1/5)
(24/5 : 25/8) + (25/4 × 16/5)
(24/5 × 8/25) + (3/1 × 4/1)
(192/125) + (12)
(192+1500)/125
1692/125
13 67/125

2. c. (15 5/8 : 2 1/12) + (2 1/7 × 3 3/10)
(125/8 : 25/12) + (15/7 × 33/10)
(125/8 × 12/25) + (3/7 × 33/2)
(3/2 × 3/1) + (99/14)
(9/2) + (99/14)
(63+99)/(14)
162/14
81/7
11 4/7

3. 12 = 2 1/4 × a
12 = 9/4 × a
12 × 4 = 9 × a
48 = 9 × a
48
---- = a
9
5 3/9 = a
5 1/3 = a
bilangan yang lain adalah 5 1/3

maap kalau ada yang salah