HOC24
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Môn học
Chủ đề / Chương
Bài học
tính
a)41\(\dfrac{1}{3}\).\(\dfrac{5}{6}\)-11\(\dfrac{1}{5}\).\(\dfrac{5}{6}\)-\(\dfrac{1}{2}\)
b)\(\dfrac{-5}{7}\).\(\dfrac{5}{8}\)-\(\dfrac{5}{7}\).\(\dfrac{3}{8}\)+\(\dfrac{5}{7}\)
tìm x
\(\dfrac{3}{4}\).x.\(\dfrac{-1}{4}\)=0,25
41\(\dfrac{1}{3}\).\(\dfrac{5}{6}\)-11\(\dfrac{1}{5}\).\(\dfrac{5}{6}\)-\(\dfrac{1}{2}\)
\(\dfrac{-5}{7}\).\(\dfrac{5}{8}\)-\(\dfrac{5}{7}\).\(\dfrac{3}{8}\)+\(\dfrac{5}{7}\)