Exercise 2 Page 295

When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators. - 1/15 + ( - 3/5)Since 15 is a multiple of 5, we can multiply both the numerator and denominator of - 35 by 3 to create a common denominator.

- 1/15+( - 3/5)

ExpandFrac

a/b=a * 3/b * 3

- 1/15+( - 3* 3/5* 3)

Multiply

Multiply

- 1/15+( - 9/15)

Now that we have a common denominator, we can proceed to simplifying the expression.

- 1/15+( - 9/15)

MoveNegFracToNum

Put minus sign in numerator

-1/15+-9/15

AddFrac

Add fractions

-1+(-9)/15

AddTerms

Add terms

-10/15

MoveNegNumToFrac

Put minus sign in front of fraction

- 10/15

ReduceFrac

a/b=.a /5./.b /5.

- 2/3