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\(\frac{15}{6.16}+\frac{15}{16.26}+\frac{15}{26.36}:\frac{33}{6.16}-\frac{63}{16.26}+\frac{93}{26.36}\)
\(=\left(\frac{15}{6.16}:\frac{33}{6.16}\right)+\left(\frac{15}{16.26}-\frac{63}{16.26}\right)+\left(\frac{15}{26.36}+\frac{93}{26.36}\right)\)
\(=\frac{5}{11}+\frac{\left(-3\right)}{26}+\frac{3}{26}\\ =\frac{5}{11}+\left(\frac{\left(-3\right)}{26}+\frac{3}{26}\right)\\=\frac{5}{11}+0=\frac{5}{11} \)
sorry mk trả lời lại nè\(\dfrac{15\cdot\left(\dfrac{1}{6\cdot16}+\dfrac{1}{16\cdot26}+\dfrac{1}{26\cdot36}\right)}{33\cdot\left(\dfrac{1}{6\cdot16}+\dfrac{1}{16\cdot26}+\dfrac{1}{26\cdot36}\right)}=\dfrac{15}{33}\)
= \(\dfrac{11}{15}\). \(\left(\dfrac{4}{11}+\dfrac{5}{11}+\dfrac{2}{11}\right)\)
= \(\dfrac{11}{15}\). 1
=\(\dfrac{11}{15}\)
\(B=\dfrac{13}{15}\cdot0,15\cdot3+\left(\dfrac{8}{15}-1\dfrac{19}{60}\right):\left(1\dfrac{23}{24}\right)\)
\(=\dfrac{13}{15}\cdot\dfrac{15}{100}\cdot3+\left(\dfrac{32}{60}-1-\dfrac{19}{60}\right):\dfrac{47}{24}\)
\(=\dfrac{39}{100}+\dfrac{-47}{60}\cdot\dfrac{24}{47}\)
\(=\dfrac{39}{100}-\dfrac{24}{60}=\dfrac{39}{100}-\dfrac{40}{100}=-\dfrac{1}{100}\)
`4 / 15 . 1 / 3 . 15 / 20`
`= [ 4 . 1 . 15 ] / [ 15 . 3 . 20 ]`
`= [ 4 . 1 . 15 ] / [ 15 . 3 . 4 . 5 ]`
`= 1 / [ 3 . 5 ]`
`= 1 / 15`