mình lớp 5 mà sao mình bt đc toán lớp 6

Me cũng lớp 5 too!

a)  − 7 10 = − 14 20 = − 21 30 = − 28 40 = − 35 50 = − 42 60 = − 49 70 = − 56 80 = − 63 90

b)  5 − 8 = 15 − 24 = 25 − 40 = ... = 95 − 152

a)  − 16 13 = − 12 26 = − 18 39 = − 24 52 = − 30 65 = − 36 78 = − 42 91

b)  5 − 8 = 10 − 16 = 2 − 32 = ... = 90 − 144

đó là

âm 12 phần 26

âm 18 phần 39

âm 24 phần 52

âm 30 phần 65

âm 36 phần 78

âm 42 phần 91

h

− 6 13 = − 12 26 = − 18 39 = − 24 52 = − 30 65 = − 36 78 = − 42 91

− 7 10 = − 14 20 = − 21 30 = − 28 40 = − 35 50 = − 42 60 = − 49 70 = − 56 80 = − 63 90

12/26;18/39;24/52;30/65;36/78;42/91

nhớ lk giùm mk

\(\frac{12}{26};\frac{18}{39};\frac{24}{52};\frac{36}{78};\frac{30}{65};\frac{42}{91}\)

12/26 ; 18/ 39 ; 24/52 ; 30/65 ; 36/78 ; 42/91

Hết

\(\frac{17}{13}\),\(\frac{85}{65}\),\(\frac{51}{39}\)

\(\frac{51}{39}\)=  \(\frac{102}{78}\)

a) \(\dfrac{-12}{16}=\dfrac{-15}{20}=\dfrac{-18}{24}=\dfrac{-21}{28}=\dfrac{-24}{32}=\dfrac{-27}{36}=\dfrac{-30}{40}=\dfrac{-33}{44}=\dfrac{-36}{48}=\dfrac{-39}{52}\)

\(=\dfrac{-42}{56}=\dfrac{-45}{60}=\dfrac{-48}{64}=\dfrac{-51}{68}=\dfrac{-54}{72}=\dfrac{-57}{76}=\dfrac{-60}{80}=\dfrac{-63}{84}=\dfrac{-66}{88}=\dfrac{-69}{92}\)

\(=\dfrac{-72}{96}=\dfrac{-75}{100}\)