Question

          B1:Tính 4/5 + 5/6

          B2: Tính 7/6 - 3/4

          B3: Tính 7/8 x 4/3

          B4: Tính 5/12 : 1/6

                                    Là 1 bài tất cả nha mọi người^^

Answer 1

B1:=24/30+25/30=49/30

B2:=28/24-18/24=10/24=5/12

B3:=28/24=7/6

B4:=5/12x6/1=5/2

Answer 2

4/5+5/6

=49/30

7/6-3/4

=5/12

7/8.4/3

=7/6

5/12:1/6

=5/2

Answer 3

B1: 4/5 + 5/6 = 24/30 + 25/30 = 49/30
B2: 7/6 - 3/4 = 14/12 - 9/12 = 5/12
B3: 7/8 x 4/3 = 28/24 = 7/6
B4: 5/12 : 1/6 = 5/12 x 6/1 = 30/12 = 10/4 = 5/2