Question

Thực hiện phép tính:

a) 1\(\dfrac{13}{15}\).(0.5)\(^2\).3+37,5%:(\(\dfrac{8}{15}-1\dfrac{9}{60}\))

Answer 1

\(1\dfrac{13}{15}-\left(0.5\right)^2.3+37.5\%:\left(\dfrac{8}{15}-1\dfrac{9}{60}\right)\)

\(=\dfrac{28}{15}.\dfrac{3}{4}+\dfrac{3}{8}:-\dfrac{37}{60}\)

\(=\dfrac{7}{5}+\left(-\dfrac{45}{74}\right)\)

\(=\dfrac{293}{370}\)

Chúc bạn học tốt!

Answer 2

\(=\dfrac{28}{15}.0,25.3+0,375:\left(-\dfrac{37}{60}\right)\)

\(=1,4-\dfrac{45}{74}\)

=\(\dfrac{293}{370}\)