Question

[Kim Chi Nguyễn]

Giúp mih giải câu này nha

Tỉnh tổng

(3-3/4+2/3)-(2+4/3-3/2)-(1-7/3-9/2)

C.ơn trc 😀😀😀😀

Answer 1

[Mashiro Shiina]

\(\left(3-\dfrac{3}{4}+\dfrac{2}{3}\right)-\left(2+\dfrac{4}{3}-\dfrac{3}{2}\right)-\left(1-\dfrac{7}{3}-\dfrac{9}{2}\right)\)

\(=\left(\dfrac{36}{12}-\dfrac{9}{12}+\dfrac{8}{12}\right)-\left(\dfrac{24}{12}+\dfrac{16}{12}-\dfrac{18}{12}\right)-\left(\dfrac{12}{12}-\dfrac{21}{12}-\dfrac{54}{12}\right)\)

\(=\dfrac{19}{12}-\dfrac{22}{12}-\dfrac{-63}{12}=5\)