\(\dfrac{50}{60}=\dfrac{5}{6}\)
\(\dfrac{33}{11}=3\)
\(\dfrac{16}{60}=\dfrac{4}{15}\)
\(\dfrac{42}{22}=\dfrac{21}{11}\)

chia là gì z

50/60=5/6

33/11=3

16/60=4/15

42/22=21/11

HT ☘

em muốn nhanh thì lần sau em tách câu hỏi ra chứ đừng hỏi nhiều trong một câu em nhé

\(\dfrac{12}{48}\) = \(\dfrac{12:12}{48:12}=\)  \(\dfrac{1}{2}\)                            \(\dfrac{49}{140}\) = \(\dfrac{49:7}{140:7}\) = \(\dfrac{7}{20}\)

\(\dfrac{125}{1000}\) = \(\dfrac{125:125}{1000:125}\) = \(\dfrac{1}{8}\)               \(\dfrac{352}{253}\) = \(\dfrac{352:11}{253:11}\)= \(\dfrac{32}{23}\)

\(\dfrac{75}{300}=\) \(\dfrac{75:75}{300:75}\) = \(\dfrac{1}{4}\)                 \(\dfrac{561}{132}\) = \(\dfrac{561:33}{132:33}\) = \(\dfrac{17}{4}\)

Giúp mình nhanh với ạ

Rút gọn các phân số sau                      16/36 72 / 120 39 / 13 / 145 36/108 35/84

\(\dfrac{50}{30}=\dfrac{5}{3};\dfrac{96}{44}=\dfrac{24}{11};\dfrac{120}{60}=2\)

giúp mình nhé! Sao lúc nào mình cần câu trả lời thì chờ mãi ko thấy ai trả lời thế?

a. \(\frac{34}{50}=\frac{2\times17}{2\times25}=\frac{17}{25}\); \(\frac{48}{68}=\frac{4\times12}{4\times17}=\frac{12}{17}\); \(\frac{1313}{2323}=\frac{101\times13}{101\times23}=\frac{13}{23}\); \(\frac{515151}{636363}=\frac{10101\times51}{10101\times63}=\frac{51}{63}\)

b. +) \(\frac{3}{15}=\frac{3}{3\times5}=\frac{1}{5}\); \(\frac{33}{44}=\frac{3\times11}{4\times11}=\frac{3}{4}\); \(\frac{2}{8}=\frac{2}{2\times4}=\frac{1}{4}\)

Mẫu chung: 20

\(\frac{1}{5}=\frac{1\times4}{5\times4}=\frac{4}{20}\); \(\frac{3}{4}=\frac{3\times5}{4\times5}=\frac{15}{20}\); \(\frac{1}{4}=\frac{1\times5}{4\times5}=\frac{5}{20}\)

+) \(\frac{9}{12}=\frac{3\times3}{4\times3}=\frac{3}{4}\); \(\frac{24}{36}=\frac{12\times2}{12\times3}=\frac{2}{3}\); \(\frac{3}{8}=\frac{3}{8}\)

Mẫu chung : 24

\(\frac{3}{4}=\frac{3\times6}{4\times6}=\frac{18}{24}\); \(\frac{2}{3}=\frac{2\times8}{3\times8}=\frac{16}{24}\); \(\frac{3}{8}=\frac{3\times3}{8\times3}=\frac{9}{24}\).

nhấn vào đúng 0 sẽ ra đáp án

QUY ĐỒNG MẪU SỐ 1/2 VÀ 2/4

a) \(-\frac{11}{18}\)

b)\(-\frac{3}{2}\)

c)\(\frac{49}{78}\)

d)\(\frac{23}{11}\)

e) \(\frac{11.12+22.24+44.48}{33.36+66.72+132.144}\)

\(=\frac{11.12+22.24+44.48}{11.3.12.3+22.3.3.24+44.3.348}\)

\(=\frac{11.12+22.24+44.48}{\left(1.12+22.24+44.48\right).9}\)

\(=\frac{1}{9}\)

a) Các phân số tối giản là: \(\dfrac{5}{9};\dfrac{7}{19}\)

b) Các phân số chưa tối giản là: \(\dfrac{26}{24};\dfrac{11}{22};\dfrac{21}{36}\)

Rút gọn: \(\left\{{}\begin{matrix}\dfrac{26}{24}=\dfrac{26:2}{24:2}=\dfrac{13}{12}\\\dfrac{11}{22}=\dfrac{11:11}{22:11}=\dfrac{1}{2}\\\dfrac{21}{36}=\dfrac{21:3}{36:3}=\dfrac{7}{12}\end{matrix}\right.\)

\(a,\dfrac{5}{9};\dfrac{7}{19}\\ b,\dfrac{26}{24}=\dfrac{13}{12};\dfrac{11}{22}=\dfrac{1}{2};\dfrac{21}{36}=\dfrac{7}{12}\)

20/45 = 4/9

14/35 = 2/7

-32/44 = -8/11

Chúc bạn học tốt !!!  :)))

Đáp án : 

\(\frac{20}{45}=\frac{20:5}{45:5}=\frac{4}{9}\)

\(\frac{14}{35}=\frac{14:7}{35:7}=\frac{2}{5}\)

\(\frac{-32}{44}=\frac{-32:4}{44:4}=\frac{-8}{11}\)

Hok tốt

\(\frac{20}{45}\)= \(\frac{4}{9}\)

\(\frac{14}{35}\)= \(\frac{2}{5}\)

\(\frac{-32}{44}\)= \(\frac{-8}{11}\)

Chúc bn hok tốt!

cầm nhật phương

\(C=\frac{11\cdot12+22\cdot24+44\cdot48}{33\cdot36+66\cdot72+132\cdot144}=\frac{12\left(11+44+132\right)}{12\left(99+396+1584\right)}=\frac{187}{2079}\)

C=\(\frac{11x12+2\left(11x12\right)+4\left(11x12\right)}{33x66+2\left(33x66\right)+4\left(33x66\right)}\) 

suy ra : C=\(\frac{11x22\left(1+2+4\right)}{33x66\left(1+2+4\right)}\)\(\Rightarrow\frac{11x22}{3\left(11x22\right)}\)\(\Rightarrow\frac{1}{3}\)

$\dfrac24$
vì $\dfrac24=\dfrac{2 \times 1}{2 \times 2}=\dfrac12$

a. 44/77 = 4/7

b. -40/56 = -5/7

c. 143/-195 = -11/15

d. -2121/3434 = -21/34

4/7

8/7

a, \(\frac{44}{77}\)= \(\frac{4}{7}\)

b, \(\frac{-40}{56}\)= \(\frac{-5}{7}\)

c, \(\frac{143}{-195}\)= \(\frac{-11}{15}\)

d, \(\frac{-2121}{3434}\)= \(\frac{-21}{34}\)

HỌC TỐT

d,