Question

(575757/424242 + 575757/565656+ 575757/727272)x 18

Answer 1

ta có:

575757/424242 = 57/42

575757/565656 = 57/56

575757/727272 = 57/72

suy ra:

(57/42 +57/56 +57/72)x 18 = 57

Answer 2

=57

Ai k mk mk se k lai

Answer 3

57 nha ban Ngoc Anh