Question

Quy đồng mẫu số :

\(\dfrac{5}{-6};\dfrac{7}{4}\)

Answer 1

lũi 

Answer 2

`MSC: 24`

`5/-6 = (5.4)/(-6.4) = -20/24`

`7/4 = (7.6)/(4.6) = 42/24`

Answer 3

\(\dfrac{5}{-6}=\dfrac{-5}{6}=\dfrac{-10}{12}\)

\(\dfrac{7}{4}=\dfrac{21}{12}\)

Answer 4

\(\dfrac{5}{-6}=\dfrac{-5}{6}=\dfrac{-5.4}{6.4}=\dfrac{-20}{24}\)

\(\dfrac{7}{4}=\dfrac{7.6}{4.6}=\dfrac{42}{24}\)

Answer 5

\(MTC:12\)

\(\dfrac{5}{-6}=\dfrac{5.2}{-6.-2}=\dfrac{10}{12}\)

\(\dfrac{7}{4}=\dfrac{7.3}{4.3}=\dfrac{21}{12}\)

 

Answer 6

mất lun câu trl ( thoi rùi nãy h 2 lần rùi đóa nhịn đủ rùi nhoa )

Answer 7

MSC= 24

5/ -6

= -5/6 

= -20/ 24

7/4

= 42/24