Exercise 64 Page 234

When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators. 7/8 - 1/2Since 8 is a multiple of 2, we can multiply both the numerator and denominator of 12 by 4 to create a common denominator.

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

Before we can evaluate a sum or difference involving mixed numbers, the mixed numbers must first be rewritten as fractions.

a bc	a* c+b/c	Simplify
1 23	1* 3+2/3	5/3
1 14	1* 4+1/4	5/4

When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators. 1 23 + 1 14 ⇔ 5/3 + 5/4 Since 12 is a multiple of both 3 and 4, we can first multiply both the numerator and denominator of 53 by 4 to create a common denominator.

Next, we can multiply both the numerator and denominator of 54 by 3 to create a common denominator.

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

Before we can evaluate a sum or difference involving mixed numbers, the mixed numbers must first be rewritten as fractions.

a bc	a* c+b/c	Simplify
2 13	2* 3+1/3	7/3
1 56	1* 6+5/6	11/6

When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators. 2 13 - 1 56 ⇔ 7/3 - 11/6 Since 6 is a multiple of 3, we can multiply both the numerator and denominator of 73 by 2 to create a common denominator.

7/3- 11/6

ExpandFrac

a/b=a * 2/b * 2

7* 2/3* 2- 11/6

Multiply

Multiply

14/6- 11/6

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

14/6- 11/6

SubFrac

Subtract fractions

14-11/6

SubTerm

Subtract term

3/6

ReduceFrac

a/b=.a /3./.b /3.

1/2