Exercise 62 Page 461

Recall that dividing fractions is the same as multiplying the first fraction by the reciprocal of the second fraction.

When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators.

- \frac{1 9}{2 0} + \frac{4}{5}

Recall that dividing fractions is the same as multiplying the first fraction by the reciprocal of the second fraction.

- \frac{8}{9} \div (- \frac{2}{5}) = - \frac{8}{9} \times (- \frac{5}{2})

When multiplying fractions, the product will be positive if the signs are the same and it will be negative if the signs are different.

Before we evaluate the expression, let's first rewrite the expression so that all of the numbers are fractions.

3 \frac{1}{2} \div 1 \frac{1}{7}

$a \frac{b}{c} = \frac{a \cdot c + b}{c}$

\frac{3 \cdot 2 + 1}{2} \div \frac{1 \cdot 7 + 1}{7}

Write as a fraction

\frac{7}{2} \div \frac{8}{7}

When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators.

- \frac{3}{4} - (- \frac{1 1}{1 6})

We want to simplify the given expression.

\frac{2}{9} \cdot \frac{1 4}{1 5} \cdot (- \frac{9}{1 0})

First, we can start by rearranging the expression using the Commutative Property of Multiplication.

Before we evaluate the expression, let's first rewrite the expression so that all of the numbers are fractions.

- 10 \frac{4}{5} + (- \frac{3}{8})

$a \frac{b}{c} = \frac{a \cdot c + b}{c}$

- (\frac{1 0 \cdot 5 + 4}{5}) + (- \frac{3}{8})

- (\frac{5 0 + 4}{5}) + (- \frac{3}{8})

Add terms

- \frac{5 4}{5} + (- \frac{3}{8})

When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators.

Recall that dividing fractions is the same as multiplying the first fraction by the reciprocal of the second fraction.

\frac{1 2}{5} \div (- \frac{1}{1 0}) = \frac{1 2}{5} \times (- \frac{1 0}{1})

8.3.1 Introduction to Angles p.460-461

8.3.2 Classifying Angles p.467-468

8.3.3 Constructing Shapes p.471-472

8.3.4 Building Triangles p.477-479