Question

помогите пожалуйста очень срочно номер 334 и 336

Answer 1

№334
$1) frac{9}{35} *8= frac{9*8}{35} = frac{72}{35} =2 frac{2}{35}$
$2) frac{7}{24}*16=frac{7*16}{24}=frac{7*2}{3}= frac{14}{3} =4 frac{2}{3}$
$3) 42* frac{4}{7} = frac{42*4}{7} = frac{6*4}{1} =24$
$4) frac{6}{19} *57= frac{6*57}{19} = frac{6*3}{1} =18$

№336
$1) frac{6}{11} * frac{4}{7} = frac{6*4}{11*7}= frac{24}{77}$
$2) frac{7}{20} * frac{10}{21} = frac{7*10}{20*21}= frac{1*1}{2*3}= frac{1}{6}$
$3) frac{8}{9} * frac{27}{32} = frac{8*27}{9*32}=frac{1*3}{1*4}= frac{3}{4}$
$4) frac{23}{28} * frac{49}{46} = frac{23*49}{28*46}=frac{1*2}{1*2}= 1$
$5) frac{34}{86} * frac{43}{51} = frac{34*43}{86*51}=frac{2*1}{2*3}= frac{1}{3}$
$6) frac{7}{18} * frac{90}{77} = frac{7*90}{18*77}= frac{1*5}{1*11}= frac{5}{11}$
$7) frac{63}{64} * frac{48}{91} = frac{63*48}{64*91}= frac{9*3}{4*13} = frac{27}{52}$
$8) frac{19}{100} * frac{5}{38} = frac{19*5}{100*38}= frac{1*1}{20*2} = frac{1}{40}$