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\(\frac{2}{5}=\frac{4}{10}\)\(\frac{5}{2}=\frac{25}{10}\) \(\frac{16}{25}=\frac{64}{100}\) \(\frac{132}{125}=\frac{1052}{1000}\)
a) \(\frac{15}{10}=1,5\) \(\frac{675}{10}=6,75\) \(\frac{7}{10}=0,7\)
\(\frac{79}{100}=0,79\) \(\frac{5}{100}=0,05\) \(\frac{67}{100}=0,67\)
b) \(\frac{1}{2}=1\div2=0,5\) \(\frac{3}{4}=3\div4=0,75\)
\(\frac{15}{8}=15\div8=1,875\) \(\frac{7}{25}=7\div25=0,28\)
\(\frac{19}{30}=19\div30=0,63\) \(\frac{21}{125}=21\div125=0,168\)
\(\dfrac{7}{5}=1,4\\ \dfrac{34}{20}=1,7\\ \dfrac{25}{50}=0,5\\ \dfrac{6}{25}=0,24\\ \dfrac{24}{125}=0,192\)
a)
\(\dfrac{1}{2}=0,5;\dfrac{3}{4}=0,75;\dfrac{7}{5}=1,4;\dfrac{9}{8}=1,125;\dfrac{26}{25}=1,04;\dfrac{120}{125}=0,96\)
b)
\(\dfrac{15}{25}=0,6;\dfrac{75}{25}=3;\dfrac{90}{300}=0,3;\dfrac{27}{36}=0,75;\dfrac{51}{85}=0,6\)
a,1/2=5/10;3/4=75/100;7/5=140/100;26/25=108/100;120/125=960/1000
b,15/25=60/100;75/25=300/100;90/300=3/10;27/36=3/4=75/100;
51/85=3/5=60/100;39/65=3/5=60/100
\(\frac{7}{20}\)= 0,35
\(\frac{9}{25}\)= 0,45
\(\frac{15}{125}\)= 0,12
\(\frac{98}{100}\)= 0,98
\(\frac{15}{150}\)= 0,1
Hk tốt
\(\dfrac{25}{4}=\dfrac{25\times25}{4\times25}=\dfrac{625}{100}\)
\(\dfrac{23}{125}=\dfrac{23\times8}{125\times8}=\dfrac{184}{1000}\)
\(\dfrac{15}{5}=3=\dfrac{3\times10}{10}=\dfrac{30}{10}\)
\(\dfrac{14}{20}=\dfrac{14\times5}{20\times5}=\dfrac{70}{100}\)
\(\dfrac{17}{50}=\dfrac{17\times2}{50\times2}=\dfrac{34}{100}\)
\(\dfrac{43}{40}=\dfrac{43\times25}{40\times25}=\dfrac{1075}{1000}\)
\(\dfrac{45}{8}=\dfrac{45\times125}{8\times125}=\dfrac{5625}{1000}\)
\(\dfrac{25}{4}=\dfrac{25\times25}{4\times25}=\dfrac{625}{100}\)
\(\dfrac{23}{125}=\dfrac{23\times8}{125\times8}=\dfrac{184}{1000}\)
\(\dfrac{15}{5}=\dfrac{15\times2}{5\times2}=\dfrac{30}{10}\)
\(\dfrac{14}{20}=\dfrac{14\div2}{20\div2}=\dfrac{7}{10}\)
\(\dfrac{17}{50}=\dfrac{17\times2}{50\times2}=\dfrac{34}{100}\)
\(\dfrac{43\times25}{40\times25}=\dfrac{1075}{1000}\)
\(\dfrac{45}{8}=\dfrac{45\times125}{8\times125}=\dfrac{5625}{1000}\)