Question

1,Rút gọn phân số :

a)\(\frac{-315}{540}\)

b)\(\frac{25.13}{26.35}\)

c)\(\frac{2929-101}{2.1919+404}\)

d)\(\frac{-1997.1996+1}{\left(-1995\right).\left(-1997\right)+1996}\)

Answer 1

mi chưa mần à?

Answer 2

Mk vt kq luôn ha bn!!

a) \(\dfrac{-315}{540}\)= \(\dfrac{-7}{12}\)

b) \(\dfrac{25.13}{26.35}\)= \(\dfrac{25.1}{2.35}\)= \(\dfrac{5}{14}\)

Answer 3

c) \(\dfrac{2929-101}{2.1919+404}\)= \(\dfrac{2828}{4242}\)

Answer 4

Câu d) mk lm đại ko bt cs đúng ko mong bn thông cảm nha!!

d) \(\dfrac{-1997.1996+1}{\left(-1995\right).\left(-1997\right)+1996}\)= \(\dfrac{1997.1996+\left(-1\right)}{1995.1997+1996}\)= \(\dfrac{-1}{1995}\)

Chúc bn hc tốt!!!

Answer 5

Câu c) bằng \(\dfrac{2}{3}\) nha bn