2 2/7*2,4*1 5/9*1 9/16 : 3 1/3*1,125*1 5/7. Created by лол103е4. matematika-ru

=или Если знак ÷ - дробная черта: 1)

7...

лол103е4 @лол103е4

October 2021 1 3 Report

2 2/7*2,4*1 5/9*1 9/16 : 3 1/3*1,125*1 5/7

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zhenyaM2002

Verified answer

$2 \frac{2}{7} * 2,4 * 1 \frac{5}{9} *1 \frac{9}{16} : 3 \frac{1}{3} *1,125 * 1 \frac{5}{7} = \\ \\ 
 =\frac{16*24*14*25*3*1125*12}{7*10*9*16*10*1000*7} = \\ \\$
= $= \frac{1*12*2*1*1*225*12}{1*5*3*1*2*40*7} = \\ \\ 
= \frac{1*3*2*1*1*3*3}{1*1*1*1*1*1*7} = \frac{54}{7} =7 \frac{5}{7}$
или
Если знак ÷ - дробная черта:

$\frac{2 \frac{2}{7}* 2,4* 1 \frac{5}{9}*1 \frac{9}{16} }{3 \frac{1}{3 }*1,125*1 \frac{5}{7} } =2 \frac{11}{12}$
1) $2 \frac{2}{7}* 2,4* 1 \frac{5}{9}*1 \frac{9}{16} = \frac{9*24*14*25}{7*10*9*16} = \frac{1*3*1*5}{1*2*1*1} = \frac{15}{2} =7 \frac{1}{2} \\ \\ 
$
$2) 3 \frac{1}{3 }*1,125*1 \frac{5}{7}= \frac{4*1125*12}{3*1000*7} = \frac{4*45*4}{1*40*7} = \frac{2*9*1}{1*1*7} = \frac{18}{7} =2 \frac{4}{7}$
$3) 7 \frac{1}{2} : 2\frac{4}{7} = \frac{15*7}{2*18} = \frac{5*7}{2*6} = \frac{35}{12} =2 \frac{11}{12}$

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