Question

Dạng 1:Thực hiện phép tính
d)\(\sqrt{225}\)-\(\sqrt{196}\)+\(\dfrac{5}{2}\):(\(\dfrac{7}{2}\)-1)
e)\(\dfrac{-7}{10}\)+\(\dfrac{6}{23}\)+\(\dfrac{17}{10}\)+\(\dfrac{17}{23}\)
f)\(\sqrt{144}\)-|\(\dfrac{5}{4}\)|:(\(\dfrac{1}{3}\)-\(\dfrac{1}{2}\))\(^2\)
g) (\(\dfrac{3}{2}\))\(^2\)-[\(\dfrac{1}{2}\):2-9.(\(\dfrac{1}{3}\))\(^2\)]
h) (\(\dfrac{-2}{5}\)).\(\dfrac{3}{8}\)+(\(\dfrac{-2}{5}\)).\(\dfrac{5}{8}\)+\(\dfrac{2}{5}\)
Giúp mik với, mik cần gấp!!

Answer 1

d: \(=15-14+\dfrac{5}{2}:\dfrac{5}{2}=1+1=2\)

e: \(=\dfrac{-7}{10}+\dfrac{17}{10}+\dfrac{6}{23}+\dfrac{17}{23}=1+1=2\)

f: \(=12-\dfrac{5}{4}:\dfrac{1}{36}=12-\dfrac{5}{4}\cdot36=12-45=-33\)

g: \(=\dfrac{9}{4}-\dfrac{1}{4}+9\cdot\dfrac{1}{9}=2+1=3\)