Question

giúp mình bài nay nha mình đang cần gấp

Answer 1

;-; tách ra đuy bn hìn oi 

Answer 2

a: 7/9=7/9; 2/3=6/9

b: 4/10=8/20

11/20=11/20

c: 4/25=12/75

3/75=3/75

d: 4/25=16/100

5/100=5/100

e: 17/60=17/60

4/5=48/60

g: 5/9=20/36

7/36=7/36

h: 2/10=2/10

9/5=18/10

i: 53/16=53/16

3/4=12/16

Answer 3

a: 

\(MSC:9\\ \dfrac{7}{9};\dfrac{2}{3}=\dfrac{2\times3}{3\times3}=\dfrac{6}{9}\)

b: 

\(MSC:20\\ \dfrac{4}{10}=\dfrac{4\times2}{10\times2}=\dfrac{8}{20}\)

c:

\(MSC:75\\ \dfrac{4}{25}=\dfrac{4\times3}{25\times3}=\dfrac{12}{75}\)

d:

\(MSC:100\\ \dfrac{4}{25}=\dfrac{4\times4}{25\times4}=\dfrac{16}{100}\)

e:

\(MSC:60\\ \dfrac{4}{5}=\dfrac{4\times12}{5\times12}=\dfrac{28}{60}\)