tính nhanh
\(5\frac{5}{27}+\frac{7}{23}+0.5-\frac{5}{7}+\frac{16}{23}\)
Những câu hỏi liên quan
\(1\frac{5}{17}+\frac{16}{27}-\frac{5}{17}+0.5+\frac{7}{23}\)
=22/17 +16/27 -5/17 +0,5+7/23
=1+0,5+16/27+7/23
=2977/1242
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\(1\frac{5}{17}+\frac{16}{27}-\frac{5}{17}+0.5+\frac{7}{23}\)
\(=1+\frac{5}{17}+\frac{16}{27}-\frac{5}{17}+\frac{1}{2}+\frac{7}{23}\)
\(=1+\frac{16}{27}+\frac{1}{2}+\frac{7}{23}+\left(\frac{5}{17}-\frac{5}{17}\right)\)
\(=\frac{43}{27}+\frac{37}{46}+0\)
\(=\frac{1978}{1242}+\frac{999}{1242}\)
\(=\frac{2977}{1242}\)
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\(5\frac{27}{5}+\frac{27}{23}+0.5-\frac{5}{27}+\frac{16}{23}\)
\(5\frac{5}{27}+\frac{7}{23}+0,5-\frac{5}{27}+\frac{16}{23}\)
\(5\frac{5}{27}+\frac{7}{23}+0,5-\frac{5}{27}+\frac{16}{23}\)
\(=\left(5\frac{5}{27}-\frac{5}{27}\right)+\left(\frac{7}{23}+\frac{16}{23}\right)+0,5\)
\(=5+\frac{23}{23}+0,5=5,5+1=6,5\)
Thực hiện phép tính: \(5\frac{27}{5}+\frac{27}{23}+0,5-\frac{5}{27}+\frac{16}{23}\)
Tính giá trị biểu thức1.Afrac{1}{5}+frac{3}{17}-frac{4}{3}+left(frac{4}{5}-frac{3}{17}+frac{1}{3}right)-frac{1}{7}+left[frac{-14}{30}right]2.Bleft(frac{5}{8}-frac{4}{12}+frac{3}{2}right)-left(frac{5}{8}+frac{9}{13}right)-left[frac{-3}{2}right]+frac{7}{-15}3.Cfrac{5}{18}+frac{8}{19}-frac{7}{21}+left(frac{-10}{36}+frac{11}{19}+frac{1}{3}right)-frac{5}{8}4.Dfrac{1}{9}-left[frac{-5}{23}right]-left(frac{-5}{23}+frac{1}{9}+frac{25}{7}right)+frac{50}{14}-frac{7}{30}5.Efrac{1}{13}+left(frac{-5}{18}-frac...
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Tính giá trị biểu thức
\(1.A=\frac{1}{5}+\frac{3}{17}-\frac{4}{3}+\left(\frac{4}{5}-\frac{3}{17}+\frac{1}{3}\right)-\frac{1}{7}+\left[\frac{-14}{30}\right]\)
\(2.B=\left(\frac{5}{8}-\frac{4}{12}+\frac{3}{2}\right)-\left(\frac{5}{8}+\frac{9}{13}\right)-\left[\frac{-3}{2}\right]+\frac{7}{-15}\)
\(3.C=\frac{5}{18}+\frac{8}{19}-\frac{7}{21}+\left(\frac{-10}{36}+\frac{11}{19}+\frac{1}{3}\right)-\frac{5}{8}\)
\(4.D=\frac{1}{9}-\left[\frac{-5}{23}\right]-\left(\frac{-5}{23}+\frac{1}{9}+\frac{25}{7}\right)+\frac{50}{14}-\frac{7}{30}\)
\(5.E=\frac{1}{13}+\left(\frac{-5}{18}-\frac{1}{13}+\frac{12}{17}\right)+\left(\frac{12}{17}+\frac{5}{18}+\frac{7}{5}\right)\)
\(6.F=\frac{15}{14}-\left(\frac{17}{23}-\frac{80}{87}+\frac{5}{4}\right)+\left(\frac{12}{17}-\frac{15}{14}+\frac{1}{4}\right)\)
\(7.G=\frac{1}{25}-\frac{4}{27}+\left(\frac{-23}{27}+\frac{-1}{25}-\frac{5}{43}\right)+\frac{5}{43}-\frac{4}{7}\)
\(8.H=\frac{4}{15}-\frac{23}{28}-\left(\frac{-23}{28}+\frac{-11}{15}-\frac{29}{27}\right)-\frac{2}{27}\)
\(9.K=\frac{1}{16}-\frac{5}{21}+\left(\frac{-1}{16}+\frac{-3}{5}-\frac{-5}{21}\right)+\frac{-2}{5}+\frac{3}{4}\)
\(10.L=\frac{7}{12}+\frac{15}{14}-\left(\frac{14}{22}+\frac{-1}{14}+\frac{5}{21}\right)-\frac{-5}{21}+\frac{3}{5}\)
yutyugubhujyikiu
a) \(15\frac{1}{4}:\left(-\frac{5}{7}\right)-25\frac{1}{4}:\left(-\frac{5}{7}\right)\)
b) \(5\frac{5}{27}+\frac{7}{27}+0,5-\frac{5}{27}+\frac{16}{23}\)
Bạn cố gắng động não suy nghĩ nhé.
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mk chỉ muốn kt lại kq thôi, do tính trên máy tính khác tính tay thì khác
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\(4\frac{5}{16}+\frac{4}{23}+0.5-\frac{5}{16}+\frac{19}{23}\)
\(4\frac{5}{16}+\frac{4}{23}+0.5-\frac{5}{16}+\frac{19}{23}\)
= \(\left(4\frac{5}{16}-\frac{5}{16}\right)+\left(\frac{4}{23}+\frac{19}{23}\right)+0.5\)
= \(4+1+0,5\)
= 5 + 0,5
= 5,5 = \(\frac{55}{10}\)= \(\frac{11}{2}\)
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\(5\frac{27}{5}\) + 27/23 +0.5 - 5/27 + 16/23
12,58... (... là còn nhiều chữ số thập phân sau số này)
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5 \(\frac{27}{5}\)+ \(\frac{27}{23}\)+ 0,5 \(-\)\(\frac{5}{27}\)+ \(\frac{16}{23}\)
\(\Rightarrow\) \(\frac{52}{5}\)+\(\frac{27}{23}+\frac{1}{2}-\frac{5}{27}+\frac{16}{23}\)
\(\approx\)12
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\(5.\frac{5}{7}+\frac{7}{23}+0,5.\frac{5}{7}+\frac{16}{23}+\frac{1}{2}\)
\(5.\frac{5}{7}+\frac{7}{23}+0,5.\frac{5}{7}+\frac{16}{23}+\frac{1}{2}\)
\(=5.\frac{5}{7}+0,5.\frac{5}{7}+\frac{7}{23}+\frac{16}{23}+\frac{1}{2}\)
\(=(5+0,5).\frac{5}{7}+\frac{1}{23}.\left(7+16\right)+\frac{1}{2}\)
\(=\frac{11}{2}.\frac{5}{7}+\frac{1}{23}.23+\frac{1}{2}\)
\(=\frac{55}{14}+\frac{23}{23}+\frac{1}{2}\)
\(=\frac{55}{14}+\frac{1}{2}+1\)
\(=\frac{31}{7}+1=\frac{38}{7}\)
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\(5\cdot\frac{5}{7}+\frac{7}{23}+0.5\cdot\frac{5}{7}+\frac{16}{23}\)
=\(\left(5+0.5\right)\cdot\frac{5}{7}+\left(\frac{7}{23}+\frac{16}{23}\right)\)
=5.5*\(\frac{5}{7}+1\)
=\(\frac{69}{14}\)
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