\(\frac{48}{96}=\frac{48:48}{96:48}=\frac{1}{2}\)

\(\frac{42}{98}=\frac{42:14}{98:14}=\frac{3}{7}\)

\(\frac{80}{240}=\frac{80:80}{240:80}=\frac{1}{3}\)

\(\frac{75}{100}=\frac{75:25}{100:25}=\frac{3}{4}\)

\(\frac{64}{720}=\frac{64:16}{720:16}=\frac{4}{45}\)

\(\frac{15}{120}=\frac{15:15}{120:15}=\frac{1}{8}\)

48/96=1/2

42/98=3/7

80/240=1/3

75/100=3/4

64/720=4/45

15/120=1/8

48/96=1/2

42/98=3/7

80/240=1/3

75/100=3/4

64/720=4/45

15/120=1/8

\(\frac{48}{64}\)Rút gọn = \(\frac{3}{4}\)

48/64=6/8

nha<<<

\(\frac{48}{64}=\frac{48:8}{64:8}=\frac{6}{8}\)

Rút gọn:

\(\frac{15}{30}=\frac{2}{3}\)

\(\frac{48}{64}=\frac{3}{4}\)

\(\frac{34}{85}=\frac{2}{5}\)

Quy đồng:

\(\frac{40}{60}=\frac{45}{60}=\frac{24}{60}\)

1, 1/2

2, 3/4

3, 2/5

18/30=3/5

48/96=1/2

64/720=4/45

42/98=6/14=3/7

18/30=3/5

48/96=1/2

64/720=4/45

42/98=3/7

bạn tk mk nha~~~

18/30=3/5

48/96=1/2

64/720=4/45

42/98=24/49

\(\dfrac{28}{42}=\dfrac{2}{3};\dfrac{60}{45}=\dfrac{4}{3};\dfrac{64}{48}=\dfrac{4}{3};\dfrac{58}{154}=\dfrac{29}{77}\)

\(\dfrac{28}{42}=\dfrac{2}{3}\\ \dfrac{60}{45}=\dfrac{4}{3}\\ \dfrac{64}{48}=\dfrac{4}{3}\\ \dfrac{58}{154}=\dfrac{29}{77}\)

\(\dfrac{28}{42}=\dfrac{28\div14}{42\div14}=\dfrac{2}{3}\)

\(\dfrac{60}{45}=\dfrac{60\div15}{45\div15}=\dfrac{4}{3}\)

\(\dfrac{64}{48}=\dfrac{64\div16}{48\div16}=\dfrac{4}{3}\)

\(\dfrac{58}{154}=\dfrac{58\div2}{154\div2}=\dfrac{29}{77}\)

giúp mình  nhanh với ạ

72/96 =9/12  

64/48=4/3

132/462=12/42

 a) \(\dfrac{72}{96}\)=\(\dfrac{72:24}{96:24}\)=\(\dfrac{3}{4}\)                                                       b) \(\dfrac{64}{48}\)=\(\dfrac{64:16}{48:16}\)=\(\dfrac{4}{3}\)

 c) \(\dfrac{132}{462}\)=\(\dfrac{132:66}{462:66}\)=\(\dfrac{2}{7}\)

= 2/7 

= 33/8 

nha bn nguyen tuan anh

\(\frac{48}{168}\cdot\frac{132}{32}=\frac{2^4\cdot3}{2^3\cdot3\cdot7}\cdot\frac{2^2\cdot3\cdot11}{2^5}=\frac{2\cdot1}{1\cdot1\cdot7}\cdot\frac{1\cdot3\cdot11}{2^3}=\frac{33}{28}\)

Gọi phân số đó là \(\frac{3k}{5k}\).Theo đề bài, ta có:

3k + 5k = 48

=> 8k = 48

=> k = 6

=> Phân số cần tìm là \(\frac{3.6}{5.6}=\frac{18}{30}\)

Ta có sơ đồ:

Tử số   |          |          |          |                           } Tổng: 48

Mẫu số |          |          |          |          |          |

Theo sơ đồ, tổng số phần bằng nhau là:

          3 + 5 = 8 (phần)

Giá trị 1 phần là:
        48 : 8 = 6

Tử số là:
        6 . 3 = 18

Mẫu số là:
       6 . 5 = 30

=> Phân số cần tìm là \(\frac{18}{30}\)

                 Đáp số: \(\frac{18}{30}\)

https://olm.vn/hoi-dap/question/1037641.html

Rút gọn các phân số sau :

\(\frac{18}{30}=\frac{18\div6}{30\div6}=\frac{3}{5}\)

\(\frac{64}{80}=\frac{64\div16}{80\div16}=\frac{4}{5}\)

\(\frac{36}{27}=\frac{36\div9}{27\div9}=\frac{4}{3}\)

\(\frac{45}{35}=\frac{45\div5}{35\div5}=\frac{9}{7}\)

\(\frac{18}{30}=\frac{3}{5}\)

\(\frac{64}{80}=\frac{4}{5}\)

\(\frac{36}{27}=\frac{4}{3}\)

\(\frac{45}{35}=\frac{9}{7}\)