1 3/7 × 49/9 - 4/3
2. 27
p>3, 12× 5/6 – 2/9 ×3
4, 8× 5/4 1/4
5, 6 ÷ 3/8 – 3/8 ÷6
6, 4/7 × 5/9 3/7 × 5/9
7, 5/2 -( 3/2 4/5 )
8, 7/8 ( 1/8 1/9 )
9, 9 × 5/6 5/6
10, 3/4 × 8 /9 - 1/3
11, 7 × 5/49 3/14
12, 6 × ( 1/2 2/3 )
13, 8 × 4/5 8 × 11/5
14, 31 × 5/6 – 5/6
15, 9/7 - ( 2/7 – 10/21 )
16, 5/9 × 18 – 14 × 2/7
17, 4/5 × 25/16 2/3 × 3/ 4
18, 14 × 8/7 – 5/6 × 12/15
19, 17/32 – 3/4 × 9/24
20, 3 × 2/9 1/3