bantu jawab pakai cara besok dikumpulkan

1. 3 1/3 × 2 1/2 =
= 10/3 × 5/2
= 50/6
= 8 2/6
= 8 1/3

2. jp = js : skala
jp = 12 m : 200
jp = 1200 cm : 200
jp = 6 cm

3. dalam waktu 2 jam = 100 km
jadi 1 jam = 50 km
klo 3 jam = 3 × 50 km
= 150 km

4. 40% dari 200
= 40/100 × 200
= 80

5. Jona : Ari =
25 : 35 = 5 : 7

6. js = jp x skala
js = 3 cm × 2.500.000
js = 7.500.000 cm
js = 75 km

7. 20 1/2 - 11 3/4 =
= 41/2 - 47/4
= 92/4 - 47/4
= 45/4
= 11 1/4

8. itu maksudnya 5 liter yaa bukan 5 meter bensin
5 liter = 130 km
1 liter = 130/5 = 26 km
jadi 3 liter bensin dapat menempuh
3 × 26 km = 78 km

9. 3/4 = 6/n
3/4 = 6/8
jadi nilai n adalah 8

10. 9/2 × 4/7 : 3/5
= 9/2 × 4/7 × 5/3
= 180/42
= 4 12/42
= 4 2/7

Semoga membantu