Question

[tran dinh duc]

CAU EASY NAY

TINH BANG CACH THUAN TIEN NHAT 

2/3 * 10/21 *3/2

22/5 * 12 * 5/12

7/2 * 28/81 * 2/7

5/17 * 21/4 * 47/15 * 0

Answer 1

[Serein]

2/3 *  10/21 * 3/2 = (2/3 * 3/2) * 10/21 = 1 * 10/21 = 10/21

22/5 * 12 * 5/12 = 22/5 * (12 * 5/12) = 22/5 * 5 =22

7/2 * 28/81 * 2/7= (7/2 * 2/7) * 28/81 = 1 * 28/81 =28/81

5/17 * 21/4 * 47/15 * 0 = 0

~Study well~

#Seok_Jin#

Answer 2

[tran dinh duc]

ARE YOU KOREAN ???