![](https://rs.olm.vn/images/avt/0.png?1311)
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
mại zô mại zô !!!!!!!!!!!!!!!!!!!! Tận 2 l-i-ke á nha mn nhanh kẻo lỡ
\(8m9dm=8m+\frac{9}{10}m=8\frac{9}{10}m\)
\(6m55cm=6m+\frac{55}{100}m=6\frac{55}{100}m\)
\(5dam4dm=5dam+\frac{5}{100}dam=5\frac{5}{100}\)
9 tấn 5 kg = 9 tấn + \(\frac{5}{1000}\)tấn =\(9\frac{5}{1000}\)tấn
\(\frac{21}{39}=\frac{21:3}{39:3}=\frac{7}{13}\)
\(\frac{16}{24}=\frac{16:8}{24:8}=\frac{2}{3}\)
\(\frac{36}{72}=\frac{36:36}{72:36}=\frac{1}{2}\)
\(\frac{24}{1000}=\frac{24:8}{1000:8}=\frac{3}{125}\)
Chúc bạn học tốt
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\dfrac{64}{1000}=\dfrac{64:8}{1000:8}=\dfrac{8}{125}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\text{Giải:}\)
\(\frac{678}{1000}=\frac{678:2}{1000:2}=\frac{339}{500}\)
\(\text{Hoc tốt!!!}\)
\(\frac{678}{1000}\)
\(=\frac{339\cdot2}{500\cdot2}\)
\(=\frac{339}{500}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a, Rút gọn phân số:
\(\frac{108108}{102102}=\frac{108108:6006}{102102:6006}=\frac{18}{17}.\)
Chúc bạn học tốt!
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\dfrac{3}{8}\)
\(\dfrac{7}{13}\)
\(\dfrac{2}{3}\)
\(\dfrac{1}{2}\)
\(\dfrac{3}{125}\)
\(\dfrac{15}{40}\) = \(\dfrac{3}{8}\) rút gọn cho 5
\(\dfrac{21}{39}\) = \(\dfrac{7}{13}\) rút gọn cho 3
\(\dfrac{16}{24}\) = \(\dfrac{4}{6}\) rút gọn cho 4
\(\dfrac{36}{72}\) = \(\dfrac{4}{8}\) rút gọn cho 9
\(\dfrac{24}{1000}\) = \(\dfrac{3}{125}\) rút gọn cho 8
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{15}{40}\)= \(\frac{3}{8}\)
\(\frac{21}{39}\)= \(\frac{7}{13}\)
\(\frac{16}{24}\)= \(\frac{4}{6}\)= \(\frac{2}{3}\)
\(\frac{36}{72}\)= \(\frac{1}{2}\)
\(\frac{24}{1000}\)= \(\frac{12}{500}\)= \(\frac{6}{250}\)= \(\frac{3}{125}\)
\(\frac{24}{1000}=\frac{24:8}{1000:8}=\frac{3}{125}.\)
Ta rút gọn như sau:
\(\frac{24}{1000}=\frac{24\div8}{1000\div8}=\frac{3}{125}\)