contestada

Which expression is equivalent to
2.2

2.5
2.2−2.5?
A
2.5−2.22.5−2.2
B
2.2+2.52.2+2.5
C
2.2+(−2.5)2.2+(

2.5)
D
2.2−(−2.5)2.2−(

2.5)