Đề thi online - Tập hợp Q các số hữu tỉ - Cộng, tr...

A \(\dfrac{{ - 1}}{{60}}\)

B \(\dfrac{{ - 17}}{{60}}\)

C \(\dfrac{{ - 5}}{{35}}\)

D \(\dfrac{1}{{60}}\)

A a) \(-\dfrac{7}{6}\)

b) \(0\)

c) \(-\dfrac{7}{4}\)

B a) \( \dfrac{7}{6}\)

b) \(0\)

c) \(-\dfrac{7}{4}\)

C a) \(-\dfrac{7}{6}\)

b) \(1\)

c) \(\dfrac{7}{4}\)

D a) \(-\dfrac{7}{6}\)

b) \(\dfrac{4}{3}\)

c) \(-\dfrac{7}{4}\)

A a) \( x = \dfrac{{21}}{2} \)

b) \( x = \dfrac{{13}}{9} \)

c) \(x = \dfrac{9}{4}\) hoặc \(x = \dfrac{{15}}{{14}}\)

B a) \( x = \dfrac{{21}}{2} \)

b) \( x = \dfrac{{13}}{9} \)

c) \(x = \dfrac{9}{4}\)

C a) \( x = -\dfrac{{21}}{2} \)

b) \( x = 0 \)

c) \(x = \dfrac{9}{4}\) hoặc \(x = \dfrac{{15}}{{14}}\)

D a) \( x = \dfrac{{21}}{2} \)

b) \( x = -\dfrac{{13}}{9} \)

c) \( x = \dfrac{{15}}{{14}}\)

A \(\dfrac{{1}}{{101}}\)

B \(\dfrac{{29}}{{45}}\)

C \(\dfrac{{99}}{{100}}\)

D \(\dfrac{{31}}{{45}}\)