Question

Thực hiện phép tính:

a) \(1\dfrac{13}{15}\). (-5)². 3 + (\(\dfrac{8}{15}-\dfrac{19}{60}\)) : \(1\dfrac{23}{24}\)

b) \(\dfrac{\left(\dfrac{11^2}{200}+0.414:0.01\right)}{\dfrac{1}{12}-37.25+3\dfrac{1}{6}}\)

nhanh nhé mik cần gấp!

Answer 1

a) \(1\dfrac{13}{15}.\left(-5\right)^2.3+\left(\dfrac{8}{15}-\dfrac{19}{60}\right):1\dfrac{23}{24}\)

\(=\dfrac{28}{15}.25.3+\dfrac{13}{60}.\dfrac{24}{47}\)

\(=140+\dfrac{26}{235}=140\dfrac{26}{235}\)

b) \(\dfrac{\left(\dfrac{11^2}{200}+0,414:0,01\right)}{\dfrac{1}{12}-37.25+3\dfrac{1}{6}}\)

\(=\dfrac{\left(\dfrac{121}{200}-41,4\right)}{\dfrac{1}{12}-92519+\dfrac{19}{6}}\)

\(=\dfrac{2\dfrac{191}{207}}{-9251575}\)