`MSC: 24`
`5/-6 = (5.4)/(-6.4) = -20/24`
`7/4 = (7.6)/(4.6) = 42/24`
\(\dfrac{5}{-6}=\dfrac{-5}{6}=\dfrac{-10}{12}\)
\(\dfrac{7}{4}=\dfrac{21}{12}\)
\(\dfrac{5}{-6}=\dfrac{-5}{6}=\dfrac{-5.4}{6.4}=\dfrac{-20}{24}\)
\(\dfrac{7}{4}=\dfrac{7.6}{4.6}=\dfrac{42}{24}\)
\(MTC:12\)
\(\dfrac{5}{-6}=\dfrac{5.2}{-6.-2}=\dfrac{10}{12}\)
\(\dfrac{7}{4}=\dfrac{7.3}{4.3}=\dfrac{21}{12}\)
mất lun câu trl ( thoi rùi nãy h 2 lần rùi đóa nhịn đủ rùi nhoa )
MSC= 24
5/ -6
= -5/6
= -20/ 24
7/4
= 42/24