Question

98775 - 32 x 85 / 67500 - 24 x 236 / 568 + 101598 : 287 / 6875 + 980 -180       \(\dfrac{2}{5}+\dfrac{3}{10}-\dfrac{1}{2}\)  /  \(\dfrac{8}{11}+\dfrac{8}{33}\) x \(\dfrac{3}{4}\) /  7/9 x 3/14 :5/8  / \(\dfrac{5}{12}-\dfrac{7}{32}:\dfrac{21}{16}\)
 

ÉT O ÉT

Answer 1

98775 - 32 x 85

=98775 -2720

=96055

 

 67500 - 24 x 236

= 67500 -5664

=61836

 

 568 + 101598 : 287

= 568 +354

=922

 

6875 + 980 -180  

=7855 -180 

=7675

 

Answer 2

\(\dfrac{2}{5}+\dfrac{3}{10}-\dfrac{1}{2}\)

\(=\dfrac{7}{10}-\dfrac{1}{2}\)

= \(\dfrac{1}{5}\)

 

\(\dfrac{8}{11}+\dfrac{8}{33}x\dfrac{3}{4}\)

\(=\dfrac{8}{11}+\dfrac{2}{11}\)

\(=\dfrac{10}{11}\)

 

\(\dfrac{7}{9}x\dfrac{3}{14}:\dfrac{5}{8}\)

\(=\dfrac{1}{6}:\dfrac{5}{8}\)

\(=\dfrac{1}{6}x\dfrac{8}{5}\)

\(=\dfrac{8}{30}\)

\(=\dfrac{4}{15}\)

 

\(\dfrac{5}{12}-\dfrac{7}{32}:\dfrac{21}{16}\)

\(=\dfrac{5}{12}-\dfrac{7}{32}x\dfrac{16}{21}\)

\(=\dfrac{5}{12}-\dfrac{1}{6}\)

\(=\dfrac{5}{12}-\dfrac{2}{12}\)

\(=\dfrac{3}{12}=\dfrac{1}{4}\)

Answer 3

_{Tín hịu cầu kíu :>>}

Answer 4

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