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Pomóżcie plis na jutro. ​

Pomóżcie Plis Na Jutro class=

Odpowiedź :

Odpowiedź:

zad 1

1/2 + 1/4 = 2/4 + 1/4 = 3/4

3/4 - 1/2 = 3/4 - 2/4 = 1/4

3 i 1/2 + 1/4 = 3 i 2/4 + 1/4 = 3 i 3/4

2 i 3/4 - 1/2 = 2 i 3/4 - 2/4 = 2 i 1/4

13 i 3/4 - 5 i 1/2 = 13 i 3/4 - 5 i 2/4 = 8 i 1/4

2 i 1/4 + 7 i 1/2 = 2 i 1/4 + 7 i 2/4 = 9 i 3/4

zad 2

1/4 + 5/8 = 2/8 + 5/8 = 7/8

5/6 - 2/3 = 5/6 - 4/6 = 1/6

zad 3

3/5 + 1/10 = 6/10 + 1/10 = 7/10

2/3 + 1/6 = 4/6 + 1/6 = 5/5

1 i 5/6 + 4 i 1/12 = 1 i 10/12 +4 i 1/12 = 5 i 11/12

4/5 - 3/10 = 8/10 - 3/10 = 5/10 = 1/2

8/3 - 8/9 = 24/9 - 8/9 = 16/9 = 1 i 7/9

2 i 1/2 - 1/4 = 2 i 2/4 - 1/4 = 2 i 1/4

zad 4

1/2 + 1/3 = 3/6 + 2/6 = 5/6

3/4 - 2/3 = 9/12 - 8/12 = 1/12

DawiS420viz

Odpowiedź:

1.

a) 3/4, 1/4

b) 3 3/4,

2 1/4,

8 1/4,

9 3/4,

2.

a) 2/8 + 5/8 = 7/8

b) 5/6 - 4/6 = 1/6

3.

a) 7/10

b) 4/6 + 1/6 = 5/5 = 1

c) 1 10/12 + 4 1/12 = 5 11/12

d) 8/10 - 3/10 = 5/10 = 1/2

e) 24/9 - 8/9 = 16/9 = 1 7/9

f) 2 2/4 - 1/4 = 2 1/4

4.

a) 3/6 + 2/6 = 5/6

b) 9/12 - 8/12 = 1/12