38,059 views
27 votes
27 votes
I need help with these two problems 4-155 and 4-156

I need help with these two problems 4-155 and 4-156-example-1
User Peggi
by
2.6k points

1 Answer

7 votes
7 votes

a)


(12)/(5)+(7)/(10)=(24)/(10)+(7)/(10)=(31)/(10)

b)


(9)/(4)+(-(1)/(3))=(9)/(4)-(1)/(3)=(27-4)/(12)=(23)/(12)

c)


-(3)/(5)+(-(1)/(6))=-(3)/(5)-(1)/(6)=(-18-5)/(30)=-(23)/(30)

User Swervo
by
3.4k points