Exercise 4 Page 256

To add or subtract fractions, they need to have the same denominator.

3/2

When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators. 9/10 + 3/5Since 10 is a multiple of 5, we can multiply both the numerator and denominator of 35 by 2 to create a common denominator.

9/10+3/5

ExpandFrac

a/b=a * 2/b * 2

9/10+3* 2/5* 2

Multiply

9/10+6/10

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

9/10+6/10

AddFrac

Add fractions

9+6/10

AddTerms