na jutro szybko błagam!! zad 6 str 47 matematyka z plusem ​

Na Jutro Szybko Błagam Zad 6 Str 47 Matematyka Z Plusem class=

Odpowiedź :

a)

[tex]2 \frac{2}{3} \div \frac{6}{7} = \frac{ \not8_4}{3} \times \frac{7}{ \not6_3} = \frac{28}{9} = 3 \frac{1}{9} [/tex]

b)

[tex]4 \frac{1}{3} \div \frac{3}{5} = \frac{13}{3} \times \frac{5}{3} = \frac{65}{9} = 7 \frac{2}{9} [/tex]

c)

[tex]3 \frac{3}{4} \div \frac{2}{3} = \frac{15}{4} \times \frac{3}{2} = \frac{45}{8} = 5 \frac{5}{8} [/tex]

d)

[tex]1 \frac{1}{2} \div 1 \frac{2}{3} = \frac{3}{2} \div \frac{5}{3} = \frac{3}{2} \times \frac{3}{5} = \frac{9}{10} [/tex]

e)

[tex] \frac{4}{5} \div 1 \frac{1}{6} = \frac{4}{5} \div \frac{7}{6} = \frac{4}{5} \times \frac{6}{7} = \frac{24}{35} [/tex]

f)

[tex] \frac{9}{20} \div 2 \frac{5}{7} = \frac{9}{20} \div \frac{19}{7} = \frac{9}{20} \times \frac{7}{19} = \frac{63}{380} [/tex]

[tex]a)\\2\frac23:\frac67=\frac83*\frac76=\frac43*\frac73=\frac{28}9=3\frac19\\\\b) \\4\frac13:\frac35=\frac{13}3*\frac53=\frac{65}9=7\frac29\\\\c) \\3\frac34:\frac23=\frac{15}4*\frac32=\frac{45}8=5\frac58\\\\d) \\1\frac12:1\frac23=\frac32:\frac53=\frac32*\frac35=\frac9{10}\\\\e) \\\frac45:1\frac16=\frac45:\frac76=\frac45*\frac67=\frac{24}{35}\\\\f) \\\frac9{20}:2\frac57=\frac9{20}:\frac{19}7=\frac9{20}*\frac7{19}=\frac{63}{380}[/tex]