Question

rút gọn các PS sau:

a) 123123/363363  b)199619961996/149714971497

c)1818181818/8181818181.cách làm nhé,ví dụ( 2/4 = 2:2/4:2=1/2)

Answer 1

\(\dfrac{123123}{363363}=\dfrac{41}{121}\)

Answer 2

\(a,\dfrac{123123}{363363}=\dfrac{123123:3003}{363363:3003}=\dfrac{41}{121}\\ b,\dfrac{199619961996}{149714971497}=\dfrac{199619961996:100010001}{149714971497:100010001}=\dfrac{1996}{1497}=\dfrac{1996:499}{1497:499}=\dfrac{4}{3}\\ c,\dfrac{1818181818}{8181818181}=\dfrac{1818181818\times909090909}{8181818181\times909090909}=\dfrac{2}{9}\)