Question

Va rog din toata inima va dau puncte si coroana va implor ex 4 si 5 doar coloana 1

Answer 1

Răspuns:

Explicație pas cu pas:

Împartirea a doua fractii se face Înmultind PRIMA fractie cu INVERSUL celei de a doua fractii

a)

3/7:5/8=3/7 x 8/5=24/35

b)

2/3:2/7=2/3  x  7/2=7/3

c)

5/8:3/4=5/8 x 4/3=5/6

d)

3/8: 2/3= 3/8 x 3/2=9/16

e)

4/7:8/9=4/7 x 9/8= 9/14

f)

14/39 :21/52=14/39 x 52/21 = 104/117

5

a)

8¹/₃ :2²/₃=25/3 :8/3= 25/3 x 3/8= 25/8

b)

3¹/₉ : 2¹¹/₄₂=28/9 : 95/42= 28/9 x 42/95=392/285

c)

11²/₅ :3⁴/5= 57/5 : 19/5= 57/5 x5/19 =57/19= 3

d)

4¹/₁₁ :2¹⁹/₂₂=45/11: 63/ 22=45/11 x 22/63 =10/7

e)

1⁵/₁₇ : 11 /51= 22/17 :11/51= 22/17 x 51/11  = 6