\(\frac{7}{16}\)=? %
\(\frac{27}{45}\)=? %
\(\frac{123}{80}\)=? %
chuyển các phân số sau thành tỉ số phần trăm \(\frac{7}{16}\); \(\frac{27}{45}\);\(\frac{123}{80}\)
Đổi các phân số sau thành tỉ số %:
a, \(\frac{7}{16}\)
b, \(\frac{27}{45}\)
c, \(\frac{123}{80}\)
\(\frac{7}{16}=43,75\%\)
\(\frac{27}{45}=60\%\)
\(\frac{123}{80}=153,75\%\)
a)\(\frac{7}{16}=7:16=0,4375=43,75\%\)
b)\(\frac{27}{45}=27:45=0,6=60\%\)
c)\(\frac{123}{80}=123:80=1,5375=153,75\%\)
Rút gọn :
\(\frac{18}{30},\frac{36}{27},\frac{64}{80},\frac{45}{35}\)
Rút gọn:
\(\frac{18}{30}=\frac{18:6}{30:6}=\frac{3}{5}\)
\(\frac{36}{27}=\frac{36:9}{27:9}=\frac{4}{3}\)
\(\frac{64}{80}=\frac{64:16}{80:16}=\frac{4}{5}\)
\(\frac{45}{35}=\frac{45:5}{35:5}=\frac{9}{7}\)
\(\frac{18}{30}=\frac{3}{5}\)
\(\frac{36}{27}=\frac{4}{3}\)
\(\frac{64}{80}=\frac{4}{5}\)
\(\frac{45}{35}=\frac{9}{7}\)
Rút gọn các phân số sau :
\(\frac{18}{30},\frac{64}{80},\frac{36}{27},\frac{45}{35}\)
https://olm.vn/hoi-dap/question/1037641.html
Rút gọn các phân số sau :
\(\frac{18}{30}=\frac{18\div6}{30\div6}=\frac{3}{5}\)
\(\frac{64}{80}=\frac{64\div16}{80\div16}=\frac{4}{5}\)
\(\frac{36}{27}=\frac{36\div9}{27\div9}=\frac{4}{3}\)
\(\frac{45}{35}=\frac{45\div5}{35\div5}=\frac{9}{7}\)
\(\frac{18}{30}=\frac{3}{5}\)
\(\frac{64}{80}=\frac{4}{5}\)
\(\frac{36}{27}=\frac{4}{3}\)
\(\frac{45}{35}=\frac{9}{7}\)
Thực hiện phép tính
a, \(\sqrt{12-3\sqrt{7}-\sqrt{12+3\sqrt{7}}}\)
b, \(\sqrt{125}-4\sqrt{45}+3\sqrt{20}-\sqrt{80}\)
c, \(2\sqrt{\frac{27}{4}}-\sqrt{\frac{48}{9}}-\frac{2}{5}\sqrt{\frac{75}{16}}\)
d , \(\left(\sqrt{99}-\sqrt{18}-\sqrt{11}\right)\sqrt{11}+3\sqrt{22}\)
a/ Đề sai
b/ \(\sqrt{125}-4\sqrt{45}+3\sqrt{2}-\sqrt{80}=5\sqrt{5}-12\sqrt{5}+3\sqrt{2}-4\sqrt{5}\)
\(=-11\sqrt{5}+3\sqrt{2}\)
c/ \(2\sqrt{\frac{27}{4}}-\sqrt{\frac{48}{9}}-\frac{2}{5}\sqrt{\frac{75}{16}}=2.\frac{3\sqrt{3}}{2}-\frac{4\sqrt{3}}{3}-\frac{2}{5}.\frac{5\sqrt{3}}{4}\)
\(=3\sqrt{3}-\frac{4\sqrt{3}}{3}-\frac{\sqrt{3}}{2}=\sqrt{3}\left(3-\frac{4}{3}-\frac{1}{2}\right)=\frac{7\sqrt{3}}{6}\)
d/ \(\left(\sqrt{99}-\sqrt{18}-\sqrt{11}\right)\cdot\sqrt{11}+3\sqrt{22}=33-3\sqrt{22}-11+3\sqrt{22}=22\)
\(\frac{\frac{5}{12}+\frac{1}{8}-\frac{7}{11}}{\frac{49}{11}-\frac{7}{8}-\frac{35}{12}}\)
\(\frac{5-\frac{5}{3}-\frac{5}{9}-\frac{5}{27}}{-8+\frac{8}{3}+\frac{8}{9}+\frac{8}{27}}:\frac{15-\frac{15}{11}-\frac{15}{121}}{16-\frac{16}{11}-\frac{16}{121}}\)
1)Tính
a.\(\frac{3^6\cdot45^4-15^{13}\cdot5^{-9}}{27^4\cdot25^3+45^6}\)
b.\(\frac{\left(\frac{2}{5}\right)^7\cdot5^7+\left(\frac{9}{4}\right)^3\div\left(\frac{3}{16}\right)^3}{2^7\cdot5^2+512}\)
7/16 =
27/45 =
123/80 =
Đổi các phân số sau thành tỉ số phần trăm
Giúp nha ai nhanh tick
\(7:16=\frac{7}{16}=0,4375=43,75\%\)
\(27:45=\frac{3}{5}=0,6=60\%\)
\(123:80=\frac{123}{80}=1,5375=153,75\%\)
k minh nha
tìm x biết
a)\(\frac{3\sqrt{x}-5}{2}-\frac{2\sqrt{x}-7}{3}+1=\sqrt{x}\)
b)\(\sqrt{9x^2+45}-\frac{1}{12}\sqrt{16x^2+80}+3\sqrt{\frac{x^2+5}{16}}-\frac{1}{4}\sqrt{\frac{25x^2+125}{9}}=9\)