2
3 × (
3
8 +
5
6 ),
=
2
3 ×
29
24 ,
=
29
36 ;
75%×
5
12 ÷ 2.5,
=
5
16 ÷ 2.5,
=
1
8 ;
5
14 ÷
2
3 -
3
7 ×
5
6 ,
=
15
28 -
5
14 ,
=
5
28 ;
2
2
5 ÷(2.2+0.2) +
2
3 × 6.9,
=2
2
5 ÷2.4 +
2
3 × 6.9,
=1+4.6,
=5.6;
3
4 × 0.5 +
3
4 ×
1
3 +
3
4 ×
1
6 ,
=(0.5+
1
3 +
1
6 )×
3
4 ,
=1×
3
4 ,
=
3
4 .