\(-X-\frac{3}{4}=-\frac{8}{11}\)
\(=>X+\frac{3}{4}=\frac{8}{11}=>X=-\frac{1}{44}\)
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Tính :
a) 3,5 x 2 + 1,25 x 4
b) \(\frac{3}{4}+2\times\left(\frac{1}{2}-\frac{1}{15}\right)\)
c) \(\frac{7}{11}\times\frac{1}{19}+\frac{7}{11}\times\frac{8}{19}-\frac{4}{11}\)
Bài 1: a, frac{3}{5}+ frac{6}{11}+frac{7}{13}+frac{6}{11}+frac{2}{5}+frac{19}{13}b,frac{6}{5}xfrac{3}{8}+frac{5}{8}xfrac{6}{5}-frac{4}{5}c,4 x 5 x 6 x 7 x 8 ________________8 x 10 x12 x 14x 16
Đọc tiếp
Bài 1:
a, \(\frac{3}{5}\)+ \(\frac{6}{11}\)+\(\frac{7}{13}+\frac{6}{11}\)+\(\frac{2}{5}+\frac{19}{13}\)
b,\(\frac{6}{5}\)x\(\frac{3}{8}+\frac{5}{8}\)x\(\frac{6}{5}-\frac{4}{5}\)
c,4 x 5 x 6 x 7 x 8
________________
8 x 10 x12 x 14x 16
\(\frac{10+\frac{9}{2}+\frac{8}{3}+\frac{7}{4}+ \frac{6}{5}+\frac{5}{6}+\frac{4}{7}+\frac{3}{8}+\frac{2}{9}+\frac{1}{10}}{\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{10}+\frac{1}{11}}\)
(6:\(\frac{3}{5}\)-\(1\frac{1}{7}\)x \(\frac{7}{8}\)):(\(4\frac{1}{5}\)x \(\frac{10}{11}\)+\(5\frac{2}{11}\)) x \(1\frac{2}{5}\)x\(2\frac{1}{7}\)
\(y=\frac{4\frac{6}{11}x11\frac{8}{9}+4\frac{12}{13}:3\frac{2}{5}}{123\frac{34}{45}:21\frac{1}{8}}\)
1, Tính :
a ) \(3\frac{17}{24}+2\frac{8}{15}+1\frac{7}{8}\)
b) \(2\frac{4}{11}+5\frac{2}{3}+\frac{7}{11}\)
4,8 x 8+6x4,8-8x2,4
\(\frac{6}{7}\)x \(\frac{11}{5}\)+ \(\frac{1}{5}\)x \(\frac{4}{7}\)- \(\frac{2}{3}\)
Tìm x:\(\frac{9}{4}-x:\frac{3}{11}=\frac{4}{3}\)
Tính theo cách thuận tiện nhất:
\(\frac{5}{13}\)x \(\frac{4}{11}\)+ \(\frac{8}{13}\)x \(\frac{4}{11}\)
THANKS NHÌU