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4. 75% = 3/4

5. 4/5 = 0,8 (desimal)
= 8% (persen)

6. 1 3/4 = 1,75 (desimal)
= 75% (persen)

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1. 3/9 × 1 4/12

= 3/9 × 1 1/3

= 3/9 × 4/3

= 4/9

2. 1 3/7 × 4/8

= 10/7 × 1/2

= 5/7

3. 3 2/6 : 1/3

= 3 1/3 : 1/3

= 10/3 × 3

= 10

semoga membantu.....