100 : 11=??????
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\(\left(\frac{75}{100}-\frac{60}{100}+\frac{3}{7}+\frac{3}{11}\right)+\left(\frac{275}{100}-\frac{220}{100}+\frac{11}{7}+\frac{11}{13}\right)\)\(=\frac{1311}{1540}+5\frac{331}{420}\)\(=6\frac{211}{330}\)
HỌC TỐT!!!
\(\left(\frac{75}{100}-\frac{60}{100}+\frac{3}{7}+\frac{3}{11}\right)+\left(\frac{275}{100}-\frac{220}{100}+\frac{11}{7}+\frac{11}{13}\right)\)
\(=\frac{3}{20}+\frac{3}{7}+\frac{3}{11}+\frac{11}{20}+\frac{11}{7}+\frac{11}{13}\)
\(=\frac{14}{20}+\frac{14}{7}+\frac{160}{143}=\frac{3231}{715}+\frac{14}{7}=\frac{4661}{715}\)
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( 100/7 + 100/9 + 100/11) : (1/7 + 1/9 + 1/11)
=100( 1/7 + 1/9 + 1/11) : (1/7 + 1/9 + 1/11)
=( 1/7 + 1/9 + 1/11).(100:1)
=239/693.100
=23900/693
( 100 / 7 + 100 / 9 + 100 / 11 ) : (1 / 7 + 1 / 9 + 1 / 11 )
= 100 x (( 1 / 7 + 1 / 9 + 1 / 11 ) : ( 1 / 7 + 1 / 9 + 1 / 11 ))
=100 x 1
=100
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4/3>1;1>3/4;4/3>3/4
1<11/9;9/11<11/9
100/99>1;1>99/100;100/99>99/100
minh nha cac ban
4/3>1;1>3/4;4/3>3/4
1<11/9;9/11<11/9
100/99>1;1>9/100;100/99>99/100
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(100/7+100/9+100/11):(1/7+1/9+1/11)
=100.(1/7+1/9+1/11):(1/7+1/9+1/11)
=(100:1)(1/7+1/9+1/11)
=100.239/693
=23900/693
\(\left(\frac{100}{7}+\frac{100}{9}+\frac{100}{11}\right)\div\left(\frac{1}{7}+\frac{1}{9}+\frac{1}{11}\right)\)
= \(100\times\left(\frac{1}{7}+\frac{1}{9}+\frac{1}{11}\right)\div\left(\frac{1}{7}+\frac{1}{9}+\frac{1}{11}\right)\)
= \(100\)
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bằng 9 dư 1
=9.090909090909091