Question

kak aku gedein poinnya dijawab yg bener ya makasih​

Answer 1

Verified answer

1) 4 × 3 1/3

= 4 × (3/3)/1

= 4 × 1/1

= 4 × 1

= 4

2) 0,4 × 2 2/3

= 4/10 × 8/3

= 2/5 × 8/3

= 16/15

3) 2 1/3 × 3 1/2

= 7/3 × 7/2

= 49/6

4) 2 1/2 - 1 1/3

= 5/2 - 4/3

= 15/6 - 8/6

= 7/6

5) 2/5

= 2 ÷ 5

= 0,4

6) 4 6/10

= 46/10

= 4,6(100)/100

= 460/100

= 460%

7) 0,21 ÷ 2 1/2

= 21/100 ÷ 5/2

= 21/100 × 2/5

= 42/500

9) 3/4 + 1 2/5

= 3/4 + 7/5

= 15/20 + 28/20

= 43/20

10) 1/2

= 1 ÷ 2

= 0,5

Answer 2

1. 4 × 3 ⅓

= 4 × (3 × 3 + 1)/3

= 4 × 10/3

= 40/3

= 13 1/3

2. 0,4 × 2 ⅔

= 4/10 × (2 × 3 + 2)/3

= 4/10 × 8/3

= 32/30

= (32 ÷ 2)/(30 ÷ 2)

= 16/15

= 1 1/15

3. 2 ⅓ × 3 ½

= (2 × 3 + 1)/3 × (3 × 2 + 1)/2

= 7/3 × 7/2

= 49/6

= 8 ⅙

4. 2 ½ - 1 ⅓

= 2 - 1

= 1/100

= ½ - ⅓

= x/6 - x/6

= (6 ÷ 2 × 1)/6 - (6 ÷ 3 × 1)/6

= 3/6 - 2/6

= ⅙

= 1 ⅙

5. ⅖ = desimal

= 2 ÷ 5

= 0,4

6. 4 6/10 = persen (%)

= (4 × 10 + 6)/10

= 46/10

1% = 1/100

= x/100

= (100 ÷ 10 × 46)/100

= 460/100

= 460%

7. 0,21 ÷ 2 ½

= 21/100 ÷ (2 × 2 + 1)/2

= 21/100 ÷ 5/2

= 21/100 × 2/5

= 42/500

= (42 ÷ 2)/(500 ÷ 2)

= 21/250

8. 4 ¼ senilai dengan

= (4 × 4 + 1)/4

= 17/4

= (17 × 2)/(4 × 2)

= 34/8

= 17/4

= (17 × 3)/(4 × 3)

= 51/12

9. ¾ + 1 ⅖

= ¾ + 1 ⅖

= ¾ + (1 × 5 + 2)/5

= ¾ + 7/5

= x/20 + x/20

= (20 ÷ 4 × 3)/20 + (20 ÷ 5 × 7)/20

= 15/20 + 28/20

= 43/20

= 2 3/20

10. ½ = desimal

= 1 ÷ 2

= 0,5