Thực hiện phép tính 0,25: ( 10,3-9,8)-3/4
1. thực hiện phép tính
a. 0,25: ( 10,3-9,8)-\(\dfrac{3}{4}\)
b. \(\dfrac{-5}{9}\).\(\dfrac{13}{28}\)-\(\dfrac{13}{28}\).\(\dfrac{4}{9}\)
c. \(\dfrac{6}{7}\)+\(\dfrac{5}{8}\):5-\(\dfrac{3}{16}\)
d. \(\dfrac{-5}{7}\).\(\dfrac{2}{11}\)+\(\dfrac{-5}{7}\).\(\dfrac{9}{11}\)+\(1\dfrac{5}{7}\)
e.\(\dfrac{-7}{12}\)-\(\dfrac{8}{15}\)+\(\dfrac{11}{20}\)
f. \(\dfrac{-17}{25}\).\(\dfrac{20}{33}\)+\(\dfrac{-17}{25}\).\(\dfrac{13}{33}\)+\(\dfrac{-3}{25}\)
Loga
Toán lớp 7
