Question

cần gấp

Answer 1

a: =10/15+3/15=13/15

b: =16/8+9/8=25/8

c: =5/12+9/12+4/12=18/12=3/2

d: =3/4+1/2=5/4

Answer 2

a. 2/3 + 1/5 = 10/15 + 3/15 = 13/15

b. 2 + 9/8 = 2/1 + 9/8 = 16/8 + 9/8 = 25/8

c. 5/12 + 3/4 + 1/3 = 5/12 + 9/12 + 4/12 = 18/12

d.36/48 + 105/210 = 3/4 + 1/2 = 3/4 + 2/4 = 5/4