A = \(\dfrac{\dfrac{15}{6.16}+\dfrac{15}{16.26}+\dfrac{15}{26.36}}{\dfrac{33}{6.16}-\dfrac{63}{16.26}+\dfrac{93}{26.36}}\)
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NN
24 tháng 5 2017
sorry mk trả lời lại nè\(\dfrac{15\cdot\left(\dfrac{1}{6\cdot16}+\dfrac{1}{16\cdot26}+\dfrac{1}{26\cdot36}\right)}{33\cdot\left(\dfrac{1}{6\cdot16}+\dfrac{1}{16\cdot26}+\dfrac{1}{26\cdot36}\right)}=\dfrac{15}{33}\)
HM
1
21 tháng 5 2017
\(\dfrac{33}{6.16}\)-\(\dfrac{63}{16.26}\)+\(\dfrac{93}{26.36}\)
=\(\dfrac{3.11}{3.2.16}\)-\(\dfrac{3.21}{13.2.16}\)+\(\dfrac{93}{26.36}\)
=\(\dfrac{1}{2.16}\).11+\(\dfrac{1}{2.16}\).\(\dfrac{3.21}{13}\)+\(\dfrac{93}{26.36}\)
=\(\dfrac{1}{32}\).\(\dfrac{143-63}{13}\)+\(\dfrac{31.3}{26.36}\)
=\(\dfrac{1}{32}\).\(\dfrac{143-63}{13}\)+\(\dfrac{31.3}{26.3.12}\)
=\(\dfrac{1}{32}\).\(\dfrac{80}{13}\)+\(\dfrac{31}{36.12}\)
=\(\dfrac{5}{26}\)+\(\dfrac{31}{26.12}\)
=\(\dfrac{60+31}{26.12}\)
=\(\dfrac{91}{26.12}\)
=\(\dfrac{13.7}{13.2.12}\)
=\(\dfrac{7}{24}\)
13 tháng 7 2015
\(\Rightarrow B=\frac{\frac{3}{2}.\left(\frac{1}{6}-\frac{1}{16}+\frac{1}{16}-\frac{1}{26}+\frac{1}{26}-\frac{1}{36}\right)}{\frac{33}{10}.\left(\frac{1}{6}-\frac{1}{16}+\frac{1}{16}-\frac{1}{26}+\frac{1}{26}-\frac{1}{36}\right)}=\frac{\frac{3}{2}}{\frac{33}{10}}=\frac{3}{2}:\frac{33}{10}=\frac{5}{11}\)
DP
20 tháng 8 2017
\(\frac{\frac{15}{6.16}+\frac{15}{16.26}+\frac{15}{26.36}}{\frac{33}{6.16}-\frac{63}{16.26}-\frac{93}{26.36}}\)
\(=\frac{\frac{15}{10}\cdot\left(\frac{1}{6}-\frac{1}{16}+\frac{1}{16}-\frac{1}{26}+\frac{1}{26}-\frac{1}{36}\right)}{\frac{11}{32}-\frac{63}{416}-\frac{31}{312}}\)
\(=\frac{\frac{15}{10}\cdot\left(\frac{1}{6}-\frac{1}{36}\right)}{\frac{143}{416}-\frac{63}{416}-\frac{124}{\frac{3}{416}}}=\frac{\frac{5}{24}}{\frac{143-63-\frac{124}{3}}{416}}\)
\(=\frac{\frac{5}{24}}{\frac{116}{\frac{3}{416}}}=\frac{\frac{5}{24}}{\frac{29}{312}}=\frac{65}{29}\)
3 tháng 5 2016
\(\frac{15.\left(\frac{1}{616}.\frac{1}{6.16}.\frac{1}{6.16}\right)}{33.\left(\frac{1}{6.16}.\frac{1}{6.16}.\frac{1}{6.16}\right)}=\frac{15}{35}\)