Question

mấy bạn giúp mình nhanh với cần gấp !!!!!!!!!!!!

Answer 1

a: \(=\dfrac{31}{23}-\dfrac{7}{32}-\dfrac{8}{23}=1-\dfrac{7}{32}=\dfrac{25}{32}\)

b: \(=\dfrac{38}{45}-\dfrac{8}{45}+\dfrac{1}{3}+\dfrac{3}{11}=\dfrac{30}{45}+\dfrac{1}{3}+\dfrac{3}{11}=1+\dfrac{3}{11}=\dfrac{14}{11}\)

c: \(=\dfrac{1}{3}+\dfrac{12}{67}+\dfrac{13}{41}-\dfrac{79}{67}+\dfrac{28}{41}\)

\(=\dfrac{1}{3}-1+1=\dfrac{1}{3}\)