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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
a] 41/100
b] 13/5 = 2,675/500 = 0,154/25 = 0,1662/125 = 0,496a) \(\frac{15}{10}=1,5\) \(\frac{675}{10}=6,75\) \(\frac{7}{10}=0,7\)
\(\frac{79}{100}=0,79\) \(\frac{5}{100}=0,05\) \(\frac{67}{100}=0,67\)
b) \(\frac{1}{2}=1\div2=0,5\) \(\frac{3}{4}=3\div4=0,75\)
\(\frac{15}{8}=15\div8=1,875\) \(\frac{7}{25}=7\div25=0,28\)
\(\frac{19}{30}=19\div30=0,63\) \(\frac{21}{125}=21\div125=0,168\)
3/20 --> 15/100
27/300--> 9/100
400/1000--> 40/100
2/10--> 20/100
hc tốt
3/20=15/100 ; 27/300=9/100 ; 400/1000=40/100 ; 2/10 = 20/100 Đây nha bạn !!!
11/2 = 11 x 5 / 2 x 5 = 55/10 , 15/4 = 15 x 25 / 4 x 25 = 375/100 , 31/5 = 31 x 2 / 5 x 2 = 62/10
ciuuuu
\(\dfrac{66}{60}=\dfrac{66:6}{60:6}=\dfrac{11}{10}\)
\(\dfrac{27}{300}=\dfrac{27:3}{300:3}=\dfrac{9}{100}\)
\(\dfrac{3}{4}=\dfrac{3\times25}{4\times25}=\dfrac{75}{100}\)
\(\dfrac{31}{125}=\dfrac{31\times8}{125\times8}=\dfrac{248}{1000}\)