3 3/5×2 1/7×3/4=

1]

3 3/5 × 2 1/7 × 3/4

= 18/5 × 15/7 × 3/4

= 810/140

= 5 110/140

= 5 11/14

2]

2 2/9 × 2 2/5 × 3/5

= 20/9 × 12/5 × 3/5

= 720/225

= 3 45/225

= 3 1/5

3]

3 1/8 × 1 3/5 × 2 2/5

= 25/8 × 8/5 × 12/5

= 2400/200

= 12

4]

3 1/9 × 3 3/5 × 2 2/7

= 28/9 × 18/5 × 16/7

= 8064/315

= 25 189/315

= 25 3/5