# Household Math

Whether you're needing to measure ingredients in the kitchen or calculate the sale price of a discounted item, Wolfram|Alpha is the perfect tool for answering math problems encountered in everyday life. Convert between standard and metric units during travels, add or multiply fractions for a baking recipe, calculate the percentage of a purchase to apply a discount or tip, compare different tire sizes and much more.

Measurements & Conversions

Perform computations with kitchen or other common measurements, convert them into any corresponding international unit or estimate the number of objects needed to fill a space, area or length.

#### Easily scale recipes up or down with precision:

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Simple Fractions

Add, subtract, multiply or divide fractions.

#### Do exact arithmetic with fractions:

Linear Equations

Find the solution to a simple linear equation.

#### Find the solution to a simple linear equation:

Simple Math

Do basic arithmetic calculations including addition, subtraction, multiplication and division.

#### Do basic arithmetic:

Simple Percentages

Calculate a specified percentage of a number or convert a fraction to a percentage.

Simple Geometry

### 関連する例

• Elementary Math
• Geometry
• Packing & Covering of Objects
• Percentages
• Plane Geometry
• Units & Measures
• Word Problems

Get the solution to a math word problem.

#### Solve a word problem:

Tire Sizes

Look up information about tire sizes for cars, bicycles and motorcycles.

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