3/6 + 7/5 5/9 – 2/3 9/12 x 12/24

2 bình luận về “3/6 + 7/5 5/9 – 2/3 9/12 x 12/24”

1. 3/6 + 7/5

   = 15/30 + 42/30

   = 72/30

   = 36/15

   ———————————–

   5/9 – 2/3

   = 5/9 – 6/9

   = 11/9

   ———————————–

   9/12 × 12/24

   = 108/288

   = 36/96

   = 6/16

   = 3/8

   Trả lời
2. 3/6 + 7/5    mc:30

   =3×5/30 + 7×6/30

   =15 / 30 + 42 / 30

   = 15 + 42 / 30

   =57 /30( rút gọn =19/10)

   5/9 – 2/3  mc:9

   =5/9 – 2×3/9

   =5/9 – 6/9

   =5-6/9

   =-1/9

   9/12 x 12/24

   =3/8

   Trả lời