HiSet: High School Equivalency Test: Math

The HiSet Math subject prepares students for the mathematics section of the High School Equivalency Test, covering essential math skills and concepts.

Advanced Topics

Ratios, Proportions & Percents

Comparing Numbers

Ratios compare two quantities. Proportions show when two ratios are equal. Percents are another way to express parts of a whole, especially useful in shopping, banking, and statistics.

Solving Problems

You'll use cross-multiplication to solve proportions and convert between fractions, decimals, and percents.

Everyday Applications

Whether you're figuring out a discount during a sale or mixing a recipe, understanding these concepts makes life easier!

Quick Tips

  • To find a percent, multiply by 100.
  • To solve \( \frac{a}{b} = \frac{c}{d} \), use cross-multiplication: \( a \times d = b \times c \).

Examples

  • Finding what 25% off means on a $40 jacket.

  • Mixing 2 cups of juice for every 3 cups of water.

In a Nutshell

Ratios, proportions, and percents help you compare and calculate efficiently.

Key Terms

Ratio
A way to compare two numbers.
Percent
A part of a whole expressed out of 100.