Tính a) 11/6 – 2/3 : 4/5 b) 15/8 – (7/6 – 2/3)

2 bình luận về “Tính a) 11/6 – 2/3 : 4/5 b) 15/8 – (7/6 – 2/3)”

1. 11/6 – 2/3 : 4/5

   =11/6 – 5/6

   =6/6=1

   ==========

   15/8 – (7/6-2/3)

   =15/8 – (7/6-4/6)

   =15/8 – 3/6

   =45/24-12/24

   =33/24=11/8

    

   Trả lời
2. a)11/6-2/3:4/5

   =11/6-2/3xx5/4

   =11/6-5/6

   =1

   b)15/8-(7/6-2/3)

   =15/8-(21/18-12/18)

   =15/8-1/2

   =30/16-8/16

   =11/8

   \color{green}{\text{~Bachira~}}

   Trả lời