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matematyka
proszę o pomoc w zadaniu 3, 4 i 5



Matematyka Proszę O Pomoc W Zadaniu 3 4 I 5 class=

Odpowiedź :

Odpowiedź:

1/2 - 1/3 = 3/6 - 2/6 = 1/6

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

4/6 - 2/9 = 12/18 - 4/18 = 8/18

3/4 - 1/6 = 9/12 - 2/12 = 7/12

zad 4

4 i 1/4 - 2 i 1/8 = 4 i 2/8 - 2 i 1/8 = 2 i 1/8

1 i 1/2 - 1 i 1/3 = 1 i 3/6 - 1 i 2/6 = 1/6

5 i 2/3 - 3 i 2/5 = 5 i 10/15 - 3 i 6/15 = 2 i 4/15

3 i 1/3 - 1 i 1/4 = 3 i 4/12 - 1 i 3/12 = 2 i 1/12

2 i 1/4 - 1 i 1/5 = 2 i 5/20 - 1 i 4/20 = 1 i 1/20

6 i 2/6 - 4 i 2/9 = 6 i 6/18 - 4 i 4/18 = 2 i 2/18 = 2 i 1/9

zad 5

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

2 i 2/3 + 1/2 = 2 i 4/6 + 3/6 = 2 i 7/6 = 3 i 1/6

LoczeeQ

1.

a)

[tex] \frac{1}{2} - \frac{1}{3} = \frac{3}{6} - \frac{2}{6} = \frac{1}{6} [/tex]

b)

[tex] \frac{3}{4} - \frac{2}{3} = \frac{9}{12} - \frac{8}{12} = \frac{1}{12} [/tex]

c)

[tex] \frac{4}{6} - \frac{2}{9} = \frac{12}{18} - \frac{4}{18} = \frac{8}{18} = \frac{4}{9} [/tex]

d)

[tex] \frac{3}{4} - \frac{1}{6} = \frac{9}{12} - \frac{2}{12} = \frac{7}{12} [/tex]

2.

a)

[tex]4 \frac{1}{4} - 2\frac{1}{8} = 4 \frac{2}{8} - 2 \frac{1}{8} = 2 \frac{1}{8} [/tex]

b)

[tex]1 \frac{1}{2} - 1 \frac{1}{3} = 1 \frac{3}{6} - 1 \frac{2}{6} = \frac{1}{6} [/tex]

c)

[tex]5 \frac{2}{3} - 3\frac{2}{5} = 5 \frac{10}{15} - 3 \frac{6}{15} = 2 \frac{4}{15} [/tex]

d)

[tex]3 \frac{1}{3} - 1 \frac{1}{4} = 3 \frac{4}{12} - 1 \frac{3}{12} = 2 \frac{1}{12} [/tex]

e)

[tex]2 \frac{1}{4} - 1 \frac{1}{5} = 2 \frac{5}{20} - 1 \frac{4}{20} = 1 \frac{1}{20} [/tex]

f)

[tex]6 \frac{2}{6} - 4 \frac{2}{9} = 6 \frac{6}{18} - 4 \frac{4}{18} =2 \frac{2}{18} = 2 \frac{1}{9} [/tex]

3.

a)

[tex]2 \frac{2}{3} - \frac{1}{2} = 2 \frac{4}{6} - \frac{3}{6} = 2 \frac{1}{6} [/tex]

b)

[tex]2 \frac{2}{3} + \frac{1}{2} = 2 \frac{4}{6} + \frac{3}{6} = 2 \frac{7}{6} = 3 \frac{1}{6} [/tex]

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