Trắc nghiệm Toán 6 Bài 5 Quy đồng mẫu số nhiều phâ...

A. \(\frac{18}{30};\frac{42}{30}\)

B. \(\frac{18}{30};\frac{35}{30}\)

C. \(\frac{25}{30};\frac{35}{30}\)

D. \(\frac{25}{30};\frac{42}{30}\)

A. \(\frac{60}{480};\frac{22}{480}\)

B. \(\frac{600}{4800};\frac{200}{4800}\)

C. \(\frac{15}{120};\frac{6}{120}\)

D. \(\frac{500}{4800};\frac{240}{4800}\)

A. \(\frac{-21}{63};\frac{-35}{63};\frac{16}{63}\)

B. \(\frac{-27}{63};\frac{-35}{63};\frac{12}{63}\)

C. \(\frac{-27}{63};\frac{-30}{63};\frac{16}{63}\)

D. \(\frac{-21}{63};\frac{-30}{63};\frac{12}{63}\)

A. \(\frac{2}{10}\)

B. \(\frac{4}{5}\)

C. \(\frac{1}{2}\)

D. \(\frac{4}{10}\)

A. \(\frac{9}{23}\)

B. \(\frac{3}{9}\)

C. \(\frac{9}{10}\)

D. \(\frac{3}{3}\)