\(\dfrac{-3}{5}+\dfrac{43}{10}+\dfrac{7}{6}-\dfrac{28}{15}\)
\(=3\)
\(\dfrac{-3}{5}+\dfrac{43}{10}+\dfrac{7}{6}-\dfrac{28}{15}\)
\(=3\)
giúp tôi với:
-3/5+28.43/5.56+28.5/5.24-28.21/5.63
a) 2^4.5-[131-(13-4)^2]
b)-3/5+28.43/5.56+28.5/5.24-28.21/5.63
TÍNH GIÁ TRỊ BIỂU THỨC
\(\frac{-3}{5}\)+\(\frac{28.43}{5.56}\)+\(\frac{28.5}{5.24}\)-\(\frac{28.21}{5.63}\)
Tính giá trị của biểu thức sau:
a.\(2^4.5-\left[131-\left(13-4^2\right)\right]\)
b.\(\frac{-3}{5}+\frac{28.43}{5.56}+\frac{28.5}{5.24}-\frac{28.21}{5.63}\)
\(\frac{-3}{5}+\frac{28.43}{5.56}+\frac{28.5}{3.24}-\frac{28.21}{5.63}\)
b)
Tính : \(\frac{-3}{5}\)+ \(\frac{28.43}{5.56}\)+ \(\frac{28.5}{5.24}\)- \(\frac{28.21}{5.63}\)
M=\(\dfrac{1}{1.5}\)+\(\dfrac{2}{5.13}\)+\(\dfrac{3}{12.25}\)+\(\dfrac{4}{25.41}\) và N=\(\dfrac{2}{1.7}\)+ \(\dfrac{3}{7.16}\)+\(\dfrac{4}{16.28}\)+\(\dfrac{5}{28.43}\)+\(\dfrac{6}{43.61}\)
so sánh M và N
Sắp xếp các phân số sau \(\dfrac{-5}{3};\dfrac{13}{2};\dfrac{7}{-3};1\) theo thứ tự giảm dần:
A. \(\dfrac{13}{2};1;\dfrac{7}{-3};\dfrac{-5}{3}\)
B. \(\dfrac{13}{2};1;\dfrac{-5}{3};\dfrac{7}{-3}\)
C. \(\dfrac{7}{-3};\dfrac{-5}{3};1;\dfrac{13}{2};\)
D. \(\dfrac{7}{-3};\dfrac{-5}{3};\dfrac{13}{2};1\)
Tính tổng sau đây:
a,\(\dfrac{-3}{12}\)+\(\dfrac{1}{-4}\) b,\(\dfrac{5}{12}+\dfrac{-3}{28}\) c,\(\dfrac{-7}{15}+\dfrac{3}{35}\) d,\(\dfrac{-5}{7}+\dfrac{-3}{4}\)
Giúp mk với.