Question

chứng minh rằng các phân số sau đây = nhau  : 41/88 ; 4141/8888 ; 414141/888888

Answer 1

Ta có:

4141/8888 = 41×101/88×101 = 41/88

414141/888888 = 41×10101/88×10101 = 41/88

=> đpcm

Answer 2

+) 414141/888888=414141:10101/888888:10101=41/88

+) 4141/8888=4141:101/8888:101=41/88

Ta thay : 41/88 =41/88 =41/88

Suy ra: 414141/888888=4141/8888=41/88