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\(\dfrac{15}{35}=\dfrac{15:5}{35:5}=\dfrac{3}{7}\)
\(\dfrac{24}{27}=\dfrac{24:3}{27:3}=\dfrac{8}{9}\)
\(\dfrac{17}{50}\) ( phân số dã tối giản )
\(\dfrac{15}{45}=\dfrac{15:3}{45:3}=\dfrac{5}{15}=\dfrac{5:5}{15:5}=\dfrac{1}{3}\)
\(\dfrac{99}{121}=\dfrac{99:11}{121:11}=\dfrac{9}{11}\)
`24/27` chưa được rút gọn nha:'>
\(\dfrac{24}{27}=\dfrac{24:3}{27:3}=\dfrac{8}{9}\)
\(\frac{2^{35}.9^{25}.5^{25}.13^{22}.7^{16}.5^{16}}{9^{26}.13^{22}5.^{22}.7^{17}.4^{17}.5^{2.9}}=2^{\left(35-2.17\right)}.9^{\left(25-26\right)}.5^{\left(25+16\right)-\left(22+2.9\right)}.13^{22-22}.7^{16-17}.\)
\(2^1.9^{-1}.5^1.13^0.7^{-1}=\frac{2.5}{9.7}=\frac{10}{63}\)
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50=1275
a)\(\dfrac{726486}{1333}\)
b)=(21+29)+(28+22)+(27+23)+(26+24)+25
=50.4+25
=200+25
=225
c)
= 23(39+68-7)
=23.100=2300
d)
={2011+[45-(-25)]:4}:2022
=(2011+70:4):2022
=(2011+17,5):2022
=2028,5:2022
=\(\dfrac{4057}{4044}\)
45/27=5/3
25/50=1/2
12/21=4/7
24/56=3/7
22/121=2/11
196/28=7
26/169=2/13
221/187=13/11