Fraction and Decimal Operations

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as 'a/b', where 'a' is the numerator (the number of parts) and 'b' is the denominator (the total number of equal parts).

Front

What is a decimal?

Back

A decimal is a way of representing fractions using a point (.) to separate the whole number from the fractional part. For example, 0.5 represents 1/2.

Front

How do you find the area of a rectangle?

Back

To find the area of a rectangle, multiply its length by its width. Area = Length × Width.

Front

What is the process to convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator.

Front

How do you add fractions with different denominators?

Back

To add fractions with different denominators, first find a common denominator, convert the fractions, and then add the numerators.

Front

What is the formula to calculate the cost per unit?

Back

Cost per unit = Total cost / Number of units.

Front

How do you round a decimal to the nearest cent?

Back

To round a decimal to the nearest cent, look at the third decimal place. If it's 5 or more, round up; if it's less than 5, round down.

Front

What is the importance of estimating in math?

Back

Estimating helps to quickly assess the reasonableness of an answer and can simplify calculations.

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would with whole numbers.

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, such as 2 1/2.