Question

697 номер помогите пожалуйста А и Б прошу

Answer 1

$1) frac{3}{4}*1,8=0,75*1,8=1,35$
$2)1,35*1 frac{1}{5} =1,35*1,2=1,62$
$3)1,62:0,07=23 frac{1}{7}$
$4) frac{1}{5} :0,49= frac{1}{5} : frac{49}{100} = frac{1}{5} * frac{100}{49} = frac{20}{49}$
$5) frac{20}{49} *2 frac{5}{8} = frac{20}{49} * frac{21}{8} = frac{15}{14}$
$6)23 frac{1}{7} : frac{15}{14}= frac{162}{7}* frac{14}{15} = frac{108}{5} =21,6$
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$1)0,2*6,2=1,24$
$2)1,24:0,31=4$
$3) frac{5}{6} *0,3= frac{5}{6} * frac{3}{10} = frac{1}{4} =0,25$
$4)4-0,25=3,75$
$5)1 frac{4}{11} *0,22= frac{15}{11} * frac{22}{100} = frac{3}{10} =0,3$
$6)0,3:0,01=30$
$7)2+30=32$
$8)3,75:32= frac{375}{100} * frac{1}{32} = frac{375}{3200} = frac{15}{128}$