Question

Tolongggg besok dikumpul!!!!!!!!

1. 7 1/6 - 5 2/3 + 1 1/4 =
2.4 1/8 + 8 5/12 - 9 2/3 =
3. 7 1/3 dikali 12 5/11 - 7 1/3 dikali 9 8/11 =
4. 2 2/7 dikali 3/8 + 1 3/4 =
5.( 4 4/5 : 3 1/8 ) + ( 6 1/4 dikali 3 1/5 ) =

Answer 1

1. 7 1/6 - 5 2/3 + 1 1/4 =43/6 - 17/3 + 5/4
=86/12 - 68/12 + 15/12 =18/12 + 15/12
=33/12 =2  9/12  =2    3/4

2.4 1/8 + 8 5/12 - 9 2/3 =33/8 + 101/12 - 29/3
=99/24 + 202/24 - 232/24 =301/24 - 232/24
=69/24 =2   21/24 =2    7/8

3. 7 1/3 dikali 12 5/11 - 7 1/3 dikali 9 8/11 =[22/3 x 137/11] - [22/3 x 107/11]
=3014/33 - 2354/33 =660/33 = 20

4. 2 2/7 dikali 3/8 + 1 3/4 =16/7 x 3/8 + 7/4 
=16/7 x 3/8 + 7/4 =48/56 + 7/4
=48/56 + 98/56 =146/56 =2   34/56 =2    17/28

5.( 4 4/5 : 3 1/8 ) + ( 6 1/4 dikali 3 1/5 ) =(24/5 : 25/8) + (25/4 x 16/5)
=(24/5 x 8/25) + (25/4 x 16/5) =192/125 + 400/20
=21  67/125