mtk kls 1 SMP ubahlah ke pecahan desimal : 1. 2 2/3 : 4/9 x 1 6/9 = 2. 2 2/3 x ( 1 1/2 + 4/5) = 3. 1/2 x 1 1/3 + 2/9 : 10/6 = 4. 1 2/3 x 2 1/2 - 3/5 x 1 2/7= (c

maaf banyak coretannya...
*maaf kalau salah...

1. 2 2/3 : 4/9 x 1 6/9
= 8/3 : 4/9 x 15/9
8/3 : 4/9 x 5/3
8/3 x 9/4 x 5/3
10

2. 2 2/3 x (1 1/2 + 4/5)
= 8/3 x ( 3/2 + 4/5)
8/3 x ( 15 + 8 /10)
8/3 x 23/10
184/30
92/15
6,133

3. (1/2 x 1 1/3) + (2/9 : 10/6)
= ( 1/2 x 4/3) + (2/9 : 5/3)
4/6 + (2/9 x 3/5)
4/6 + 6/45
4/6 + 2/15
20 + 4 / 30
24/30
4/5
0,8

4. (1 2/3 x 2 1/2) - (3/5 x 1 2/7)
= (5/3 x 5/2) - (3/5 x 9/7)
25/6 - 27/35
875 - 162 / 210
713/210
3,395