Tính:34/11 * 1269/46 * 23/17 * 22/9
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\(\frac{34}{11}\cdot\frac{1269}{46}\cdot\frac{23}{17}\cdot\frac{22}{9}\)
\(=\frac{34\cdot1269\cdot23\cdot22}{11\cdot46\cdot17\cdot9}\)
\(=\frac{17\cdot2\cdot141\cdot9\cdot23\cdot11\cdot2}{11\cdot23\cdot2\cdot17\cdot9}\)
\(=\frac{2\cdot141\cdot2}{2}\)
\(=141\cdot2\)
\(=282\)
\(\frac{34}{11}\cdot\frac{27}{46}\cdot\frac{23}{17}\cdot\frac{22}{9}\)
\(=\frac{34\cdot27\cdot23\cdot22}{11\cdot46\cdot17\cdot9}\)
\(=\frac{2\cdot17\cdot3\cdot3\cdot3\cdot23\cdot2\cdot11}{11\cdot2\cdot23\cdot17\cdot3\cdot3}\)
\(=\frac{3\cdot2}{1}\)
\(=6\)
=))
\(A=\dfrac{34}{11}.\dfrac{27}{46}.\dfrac{23}{17}.\dfrac{22}{9}\)
\(A=\dfrac{34.27.23.22}{11.46.17.9}=\dfrac{17.2.9.3.23.11.2}{11.23.2.17.9}=\dfrac{2.3}{1}=\dfrac{6}{1}=6\)
\(=\dfrac{9}{23}\left(\dfrac{5}{17}-\dfrac{22}{17}\right)+11+\dfrac{9}{23}=11\)
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50=1275
34/11 * 1269/46 * 23/17 * 22/9
=(34 x 1269 x 23 x 22) / (11 x 46 x 17 x 9)
=(17 x 2 x 141 x 9 x 23 x 11 x 2) / (11 x 23 x 2 x 17 x 9)
=(141 x 2) / 1
=282/1
=282
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