Question

3 and 2/5 + -3 and 1/2 equal to

Answer 1

`\large\boxed{-(1)/(10)=-0.1}`

Explanation:

`3(2)/(5)+-3(1)/(2)\qquad\text{find}\ LCD=(5)(2)=10\\\\=3(2\cdot2)/(5\cdot2)-3(1\cdot5)/(2\cdot5)=3(4)/(10)-3(5)/(10)=(3-3)+(4-5)/(10)=-(1)/(10)`