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Odpowiedź :

Krystynapasek2viz Krystynapasek2viz · Answer 1

Odpowiedź:

a) 2*3 i 2/3= 2*11/3= 22/3= 7 i 1/3

b) 1 i 2/5 *6= 7/5 *6 = 42/5= 8 i 2/5

c) 3*3 i 3/7= 3 *24/7= 72/7= 10 i 2/7

d) 4 i 1 i 1/5= 4 * 6/5 = 24/5= 4 i 4/5

e) 2 i 1/9*10= 19/9*10= 190/9 = 21 i 1/9

f) 3 i 7/10 *5= 37/10*5 ( skracamy 5 i 10 przez 5)= 37/2= 18 i 1/2

g) 3*1 i 5/12= 3*17/12 ( skracamy 3 i 12 przez 3)= 17/4= 4 i 1/4

h) 8*2 i 5/12= 8* 29/12 ( skracamy 8 i 12 przez 4)= 2*29/3= 58/3=19 i 1/3

Szczegółowe wyjaśnienie:

Venumplp5n0ahviz Venumplp5n0ahviz · Answer 2

a) [tex]2 * 3 \frac{2}{3} = \frac{2}{1} * \frac{11}{3} = \frac{22}{3} = 7 \frac{1}{3}[/tex]

b) [tex]1 \frac{2}{5} * 6 = \frac{7}{5} * \frac{6}{1} = \frac{42}{5} = 8 \frac{2}{5}[/tex]

c) [tex]3 * 3 \frac{3}{7} = \frac{3}{1} * \frac{24}{7} = \frac{72}{7} = 10 \frac{2}{7}[/tex]

d) [tex]4 * 1 \frac{1}{5} = \frac{4}{1} * \frac{6}{5} = \frac{24}{5} = 4 \frac{4}{5}[/tex]

e) [tex]2 \frac{1}{9} * 10 = \frac{19}{9} * \frac{10}{1} = \frac{190}{9} = 21 \frac{1}{9}[/tex]

f) [tex]3\frac{7}{10} * 5 = \frac{37}{10} * \frac{5}{1} = \frac{185}{10} = 18 \frac{5}{10} = 18\frac{1}{2}[/tex]

g) [tex]3 * 1 \frac{5}{12} = \frac{3}{1} * \frac{17}{12} = 1 * \frac{17}{4} = \frac{17}{4} = 4 \frac{1}{4}[/tex]

h)[tex]8 * 2 \frac{5}{12} = \frac{8}{1} * \frac{29}{12} = 2 * \frac{29}{3} = \frac{58}{3} = 19 \frac{1}{3}[/tex]