Rozwiązane

c) 1:
g) 2.4
d) {3}
h) 13.2​



C 1g 24d 3h 132 class=

Odpowiedź :

Tojamiki

Odpowiedź:

c)

1/4 * 1 1/3 = 1/4 * 4/3 = 1/3

d)

3/5 * 3 1/3 = 3/5 * 10/3 = 2

g)

2 1/5 * 4 2/3 = 11/5 * 14/3 = 154/15 = 10 4/15

h)

1 5/8 * 2 1/13 = 13/8 * 27/13 = 27/8 = 4 3/8

c)

7 * 6 4/5 = 7 * 34/5 = 238/5 = 47 3/5

d)

11 * 8 3/8 = 11 * 67/8 = 737/8 = 92 1/8

g)

5 * 2 1/10 = 5 * 21/10 = 21/2 = 10 1/2

h)

2 * 3 3/8 = 2 * 27/8 = 27/4 = 6 3/4

Szczegółowe wyjaśnienie:

Magda

Odpowiedź:

[tex]c)\ \ \dfrac{1}{4}*1\dfrac{1}{3}=\dfrac{1}{\not4_{1}}*\dfrac{\not4^1}{3}=\dfrac{1}{3}\\\\\\d)\ \ \dfrac{3}{5}*3\dfrac{1}{3}=\dfrac{\not3^1}{\not5_{1}}*\dfrac{\not10^2}{\not3_{1}}=2\\\\\\g)\ \ 2\dfrac{1}{5}*4\dfrac{2}{3}=\dfrac{11}{5}*\dfrac{14}{3}=\frac{154}{15}=10\frac{4}{15}\\\\\\h)\ \ 1\dfrac{5}{8}*2\dfrac{1}{13}=\dfrac{\not13^1}{8}*\dfrac{27}{\not13_{1}}=\dfrac{27}{8}=3\dfrac{3}{8}[/tex]

[tex]c)\ \ 7*6\dfrac{4}{5}=7*\dfrac{34}{5}=\dfrac{238}{5}=47\dfrac{3}{5}\\\\\\d)\ \ 11*8\dfrac{3}{8}=11*\dfrac{67}{8}=\dfrac{737}{8}=92\dfrac{1}{8}\\\\\\g)\ \ 5*2\dfrac{1}{10}=\not5^1*\dfrac{21}{\not10_{2}}=\dfrac{21}{2}=10\dfrac{1}{2}\\\\\\h)\ \ 2*3\dfrac{3}{8}=\not2^1*\dfrac{27}{\not8_{4}}=\dfrac{27}{4}=6\dfrac{3}{4}[/tex]

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