Na jak najszybciej :( Pomocy! Bez zadania 3. Dostanę 1, jak nie zrobię, jestem sama w domu a totalni.... Question from @alessaw

November 2018 1 13 Report

Na jak najszybciej :(

Pomocy! Bez zadania 3. Dostanę 1, jak nie zrobię, jestem sama w domu a totalnie nie umiem! :c Proszę

Lyserg $4. a) ( \frac{3}{4}-\frac{1}{5}):\frac{1}{2}= ( \frac{15}{20}-\frac{4}{20})*2= \frac{11}{20}*2= \frac{22}{20} =2 \frac{2}{20}=2 \frac{1}{20} 
$
$b) 3,2:( \frac{8}{10}- \frac{4}{10})=3,2: \frac{4}{10}= \frac{32}{10}* \frac{10}{4}=8$
$c) \frac{2}{3}*( \frac{3}{6}- \frac{1}{6})= \frac{2}{3}* \frac{2}{6}= \frac{2}{9}$
$d) 4 \frac{24}{30}+ \frac{10}{30}* \frac{1}{2}= 4 \frac{24}{30} + \frac{5}{30}=4 \frac{29}{30}$
$e) \frac{2}{9}*5 \frac{1}{2}= \frac{11}{9}$
f) $f) 12 \frac{3}{10} + \frac{61}{50}=12 \frac{15}{50} + \frac{61}{50}=12 \frac{76}{50}=13 \frac{16}{50}$
$g) 1 \frac{8}{10}:1 \frac{4}{5} = \frac{18}{10}* \frac{5}{9} =1$
$h) (1 \frac{3}{6} - 1 \frac{2}{6})* 2\frac{4}{10} -\frac{1}{20}= \frac{1}{6}* \frac{24}{10} = \frac{4}{10}$
$i) 3 \frac{3}{4}: \frac{15}{7}-1= \frac{15}{4}* \frac{7}{15}-1=1,75-1=0,75$
$5. a) 7,5+ \frac{12}{10}* \frac{5}{12}=7,5+0,5=8$
$b) \frac{5}{2}* \frac{5}{2}- \frac{1}{4}= \frac{25}{4}- \frac{1}{4}=6$
$c) \frac{2}{6}+ \frac{1}{6}- \frac{1}{4} =0,25$
d) $8+ \frac{4}{9}=8 \frac{4}{9}$
$6. a) 5* \frac{26}{10}= \frac{26}{2}=13$
$b) 6* \frac{4}{3}=8$
$c) \frac{5}{15}*3=1$
$d)21* \frac{7,5}{7}=22,5$
$e) \frac{8}{5}* \frac{12}{6}= \frac{16}{5} =3,2$
$f)(14* \frac{65}{21} \frac{3}{8}= \frac{130}{3}* \frac{3}{8} = 16,25$
$7. a) \frac{2,75}{1,25}=2,2$
$b) \frac{1,4}{1 \frac{1}{6}*6 }= \frac{1,4}{7}=0,2$
$c) \frac{ \frac{7}{6}- \frac{3}{6} }{0,1}= \frac{ \frac{4}{6} }{0,1}= \frac{40}{6}=6 \frac{4}{6}$

0 votes Thanks 1