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\(\frac{36}{10}=\frac{36:2}{10:2}=\frac{18}{5}\)
\(\frac{75}{36}=\frac{75:3}{36:3}=\frac{25}{12}\)
\(\frac{75}{300}=\frac{75:75}{300:75}=\frac{1}{4}\)
\(\frac{4}{100}=\frac{4:4}{100:4}=\frac{1}{25}\)
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\(\dfrac{5}{10}=\dfrac{1}{2}\);\(\dfrac{12}{36}=\dfrac{1}{3}\);\(\dfrac{9}{72}=\dfrac{1}{8}\);\(\dfrac{75}{300}=\dfrac{1}{4}\);\(\dfrac{15}{35}=\dfrac{3}{7}\);\(\dfrac{4}{100}=\dfrac{1}{25}\)
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em muốn nhanh thì lần sau em tách câu hỏi ra chứ đừng hỏi nhiều trong một câu em nhé
\(\dfrac{12}{48}\) = \(\dfrac{12:12}{48:12}=\) \(\dfrac{1}{2}\) \(\dfrac{49}{140}\) = \(\dfrac{49:7}{140:7}\) = \(\dfrac{7}{20}\)
\(\dfrac{125}{1000}\) = \(\dfrac{125:125}{1000:125}\) = \(\dfrac{1}{8}\) \(\dfrac{352}{253}\) = \(\dfrac{352:11}{253:11}\)= \(\dfrac{32}{23}\)
\(\dfrac{75}{300}=\) \(\dfrac{75:75}{300:75}\) = \(\dfrac{1}{4}\) \(\dfrac{561}{132}\) = \(\dfrac{561:33}{132:33}\) = \(\dfrac{17}{4}\)
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a) 15 / 18 = 5/6 ( rút gọn cho 3)
b) 30/120 = 1/4 (rút gọn cho 30)
c) 45 / 27 = 5/3 ( rút gọn cho 9 )
d) 75 / 300 = 1/4 (rút gọn cho 75)
a)là \(\frac{5}{6}\) b)là \(\frac{1}{4}\) c)là \(\frac{5}{3}\) d)là \(\frac{1}{4}\)
tik nha bạn thân!
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Rút gọn: 373737/414141=373737:10101/414141:10101=37/47
nhớ **** nha........
Bai lam:
(373737 : 10101) / (414141:10101) = 37/41
đúng mik nha!
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ta có:
\(\frac{a}{b}=\frac{4}{7}=\frac{12}{21}\)
4 đơn vị chiếm :
\(\frac{12}{21}-\frac{10}{21}=\frac{2}{21}\)(mẫu số)
Mẫu số là:
\(4:\frac{2}{21}=42\)
Tử số là:
\(42\times\frac{4}{7}=24\)
vậy phân số \(\frac{a}{b}\)là\(\frac{24}{42}\)
= 1/4 ó
75:5>15
300 :5>60