Free Printable Brot og % - (+ - / x)

1.

a)

Rétt

b)

Rangt

2.

a)

$\frac{7}{6}$

b)

$\frac{6}{7}$

c)

$\frac{5}{4}$

d)

$\frac{3}{5}$

3.

a)

$\frac{1}{3}\ =\ \frac{3}{6}\ =\ \frac{6}{9}$

b)

$\frac{2}{3}\ =\ \frac{5}{6}\ =\ \frac{8}{9}$

c)

$\frac{1}{3}\ =\ \frac{2}{6}\ =\ \frac{3}{9}$

4.

a)

Rétt

b)

Rangt

5.

$Lengjum\ \frac{1}{3}\ með\ 3$

a)

$\frac{3}{9}$

b)

$\frac{3}{3}$

c)

$\frac{1}{9}$

6.

$Styttum\ \frac{3}{9}\ með\ 3$

a)

$\frac{6}{9}$

b)

$\frac{3}{3}$

c)

$\frac{1}{3}$

7.

a)

$\frac{3}{4}$

b)

$75\%$

c)

0,75

d)

Allt rétt

8.

(a)

9.

$Breyttu\ \frac{1}{8}\ tugabrot$

(a)

10.

a)

$3\ \frac{1}{20}$

b)

4

c)

$2\ \frac{1}{2}$

11.

Leó á frí á laugardögum og sunnudögum.

Hve stóran hluta vikunnar er Leó í frí?

a)

$\frac{4}{7}$

b)

$\frac{2}{7}$

c)

$\frac{5}{7}$

12.

a)

$4\ \frac{1}{5}$

b)

4

c)

$3\ \frac{4}{5}$

13.

a)

$\frac{6}{3}$

b)

$7$

c)

$\frac{6}{9}$

14.

a)

16

b)

17

c)

18

d)

19

e)

20

15.

a)

$\frac{1}{7}$

b)

$\frac{6}{7}$

c)

$\frac{4}{7}$

16.

a)

$\frac{1}{1}$

b)

1%

c)

11

d)

allt rétt

17.

(a)

18.

$\frac{1}{2}\ +\ \frac{3}{4}\ =$

a)

$\frac{5}{4}$

b)

$1\ \frac{1}{4}$

c)

1,25

d)

Allt rétt

19.

$\frac{1}{9}\ +\ \frac{1}{3}\ =\$

a)

0,344...

b)

$\frac{4}{9}$

c)

Allt rétt

20.

(a)

21.

$\frac{3}{8}\ +\ \frac{4}{5}$

a)

$\frac{47}{40}$

b)

$\frac{12}{40}$

c)

$\frac{7}{13}$

22.

$\frac{1}{2}\ +\frac{\ 7}{8}$

a)

$\frac{11}{8}$

b)

$\frac{8}{8}$

c)

$\frac{8}{10}$

d)

Allt rétt

23.

Tugabrot yfir í Almenn brot

0,5 + 0,75 = 1,25

Hvaða möguleiki passar við dæmið?

a)

$\frac{1}{2}\ +\ \frac{3}{4}\ =\ \frac{5}{4}$

b)

$\frac{0}{5}\ +\ \frac{0}{75}\ =\ \frac{0}{125}$

c)

$\frac{1}{4}\ +\ \frac{3}{4}\ =\ 1$

24.

Tugabrot yfir í Almenn brot

0,125 + 0,75 = 1

Hvaða möguleiki passar við dæmið?

a)

$\frac{1}{2}\ +\ \frac{3}{4}\ =\ \frac{5}{4}$

b)

$\frac{2}{8}\ +\ \frac{3}{4}\ =\ 1$

c)

$\frac{3}{4}\ +\ \frac{3}{4}\ =\ 1$

25.

a)

$\frac{9}{33}$

b)

$\frac{9}{11}$

c)

$\frac{9}{14}$

26.

Fullstyttu

$\frac{4}{6}$

a)

$\frac{2}{3}$

b)

$\frac{2}{4}$

c)

$\frac{1}{3}$

27.

Fullstyttu

$\frac{5}{25}$

a)

$\frac{2}{3}$

b)

$\frac{2}{4}$

c)

$\frac{1}{5}$

28.

Fullstyttu

$\frac{4000}{50000}$

a)

$\frac{2}{30}$

b)

$\frac{2}{25}$

c)

$\frac{2}{20}$

29.

Fullstyttu

$\frac{17}{51}$

a)

$\frac{2}{3}$

b)

$\frac{1}{4}$

c)

$\frac{1}{3}$

30.

stærra, minna eða jafnt

(<, >, =)

a)

$\frac{3}{4}\ <\ \frac{9}{16}$

b)

$\frac{3}{4}\ >\ \frac{9}{16}$

c)

$\frac{3}{4}\ =\ \frac{9}{16}$

31.

stærra, minna eða jafnt

(<, >, =)

a)

$\frac{2}{5}\ <\ \frac{3}{10}$

b)

$\frac{2}{5}\ >\ \frac{3}{10}$

c)

$\frac{2}{5}\ =\ \frac{3}{10}$

32.

stærra, minna eða jafnt

(<, >, =)

a)

$\frac{1}{3}\ <\ \frac{2}{6}$

b)

$\frac{1}{3}\ >\ \frac{2}{6}$

c)

$\frac{1}{3}\ =\ \frac{2}{6}$

33.

$3\ \frac{1}{2}\ =$

a)

$\frac{6}{2}$

b)

$\frac{7}{2}$

c)

$3,2$

d)

allt rétt

34.

a)

$\frac{3}{12}$

b)

$\frac{2}{6}$

c)

$\frac{1}{12}$

35.

a)

$\frac{2}{5}$

b)

$\frac{5}{7}$

c)

$\frac{1}{12}$

36.

(a)

37.

(a)

38.

(a)

39.

(a)

40.

(a)

41.

a)

Rétt

b)

Rangt

42.

$\frac{3}{4}$

a)

b)

c)

d)

43.

$\frac{1}{4}$

a)

b)

c)

d)

44.

$\frac{4}{5}$

a)

b)

c)

d)

45.

Hvaða mynd passar við 50% ?

a)

b)

c)

d)

46.

Hvaða mynd passar við 75% ?

a)

b)

c)

d)

47.

Hvaða mynd passar við 87,5% ?

a)

b)

c)

d)

48.

Hvaða mynd passar við 25% ?

a)

b)

c)

d)

49.

Hvaða mynd passar við 37,5% ?

a)

b)

c)

d)

50.

a)

50%

b)

25%

c)

2%

d)

75%

e)

15%

51.

(a)

52.

(a)

53.

(a)

54.

a)

$\frac{2}{4}$

b)

0,5

c)

50%

d)

allt rétt

55.

a)

55%

b)

0,55

c)

allt rétt

d)

$\frac{7}{12}$

56.

a)

$3\ \frac{4}{5}$

b)

$4\ \frac{1}{5}$

c)

$4\ \frac{2}{5}$

d)

$3\ \frac{5}{5}$

57.

a)

4

b)

5

c)

3

d)

2

e)

allt rétt

58.

a)

$\frac{3}{7}$

b)

$\frac{3}{14}$

c)

$\frac{2}{7}$

d)

$\frac{11}{14}$

59.

a)

$\frac{5}{7}$

b)

$\frac{6}{7}$

c)

$\frac{19}{21}$

d)

$\frac{15}{21}$

60.

a)

$2\ \frac{3}{3}$

b)

$1\ \frac{11}{6}$

c)

$1\ \frac{5}{6}$

d)

$2\ \frac{1}{6}$

Brot og % - (+ - / x) - Stærðfræði II

Total questions: 60

Worksheet time: 3hrs 0mins

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