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\(a,5=\dfrac{20}{4};11=\dfrac{44}{4};21=\dfrac{84}{4};200=\dfrac{800}{4};125=\dfrac{500}{4};2000=\dfrac{8000}{4}\\ b,2=\dfrac{108}{54};3=\dfrac{108}{36};108=\dfrac{108}{1};1=\dfrac{108}{108};9=\dfrac{108}{12};4=\dfrac{108}{27};6=\dfrac{108}{18}\)
1.
a) 10=\(\dfrac{40}{4}\)
b) 25= \(\dfrac{100}{4}\)
2.
a) 11=\(\dfrac{11}{1}\)
b) 276=\(\dfrac{276}{1}\)
c) 158=\(\dfrac{158}{1}\)
3.
\(\dfrac{1}{1};\dfrac{2}{2};\dfrac{3}{3};\dfrac{4}{4};\dfrac{5}{5}\)
\(10=\dfrac{10\cdot6}{6\cdot1}=\dfrac{60}{6}\)
\(6=\dfrac{6\cdot6}{1\cdot6}=\dfrac{36}{6}\)
\(101=\dfrac{101\cdot6}{6}=\dfrac{606}{6}\)
\(9=\dfrac{9\cdot6}{6}=\dfrac{54}{6}\)
\(22=\dfrac{22\cdot6}{6}=\dfrac{132}{6}\)
\(6=\dfrac{12}{2}\)
\(9=\dfrac{18}{2}\)
\(4=\dfrac{8}{2}\)
\(12=\dfrac{24}{2}\)
\(11=\dfrac{22}{2}\)
\(10=\dfrac{20}{2}\)
\(13=\dfrac{26}{2}\)
\(23=\dfrac{46}{2}\)
\(30=\dfrac{60}{2}\)
Ta có: 5 = 5/1
10 = 10/1
117 = 007/1
2015 = 2015/1
2016 = 2016/1
Mn nhớ kb với tui nha
5= \(\frac{5}{1}\); 10= \(\frac{10}{1}\); 117= \(\frac{117}{1}\); 2015= \(\frac{2015}{1}\); 2016= \(\frac{2016}{1}\).