Converting among ratios, fractions and decimals  Rates, Ratios, and Proportions
Converting among ratios, fractions and decimals
Lessons
Notes:
In this lesson, we will learn:
 Converting Ratios to Fractional and Decimal Forms
 Parttopart Vs. Parttowhole Ratios
 Use of Fractional Ratios
 Comparing Ratios
 Application of Comparing Ratios
 Application of Ratios – Tips
 Application of Ratios – Similar Triangles
Notes:
 A ratio in the form of $a:b$ can be written in fractional form $\frac{a}{b}$, which can be further converted to decimals by solving a÷b.

1.
Converting Ratios to Fractional and Decimal Forms
A questionnaire shows that the ratio of iPhone to Samsung users is 4:5.

2.
Parttopart Vs. Parttowhole Ratios
Dennis drew a picture using only 14 circles and 12 triangles.

4.
Comparing Ratios
Find the value of x for the following ratios.