Exercise 23 Page 1

In this exercise, we have two fractions with different denominators. 9/10 - 4/5Since 10 is a multiple of 5, we can multiply both the numerator and denominator of 45 by 2 to create a common denominator.

9/10-4/5

ExpandFrac

a/b=a * 2/b * 2

9/10 - 4 * 2/5 * 2

Multiply

Multiply

9/10-8/10

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

9/10-8/10

SubFrac

Subtract fractions

9-8/10

SubTerm

Subtract term

1/10