Question

Tính theo 3 cách: A,3 phần 4 cộng 6 phần 12

Answer 1

=3/4+1/2

=3/4+2/4

=5/4

Answer 2

C1: 3/4 + 6/12 = 9/12 + 6/12 = 15/12 =5/4

C2: 3/4+6/12 = 3/4 + 1/2 = 6/8 + 4/8 = 10/8 = 5/4

C3: 3/4+6/12 = 36/48+24/48=60/48=5/4