Rational Numbers: All Operations

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

How do you convert a mixed number to an improper fraction?

Back

To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

Front

What is the process for adding fractions with different denominators?

Back

To add fractions with different denominators, find a common denominator, convert each fraction to an equivalent fraction with that denominator, and then add the numerators.

Front

How do you subtract fractions?

Back

To subtract fractions, ensure they have a common denominator, convert them if necessary, and then subtract the numerators while keeping the common denominator.

Front

What is the formula for multiplying fractions?

Back

To multiply fractions, multiply the numerators together and multiply the denominators together. Simplify if possible.

Front

How do you divide fractions?

Back

To divide fractions, multiply the first fraction by the reciprocal of the second fraction.

Front

What is the decimal equivalent of the fraction 1/4?

Back

The decimal equivalent of the fraction 1/4 is 0.25.

Front

How do you convert a decimal to a fraction?

Back

To convert a decimal to a fraction, write the decimal as a fraction with a denominator of 1, then multiply the numerator and denominator by 10 for each digit after the decimal point, and simplify.

Front

What is the height of a tree that grows from 125 1/2 cm to 131 1/4 cm?

Back

The height of the tree in August is 131.25 cm.

Front

How do you calculate the total amount of paint used when given mixed fractions?

Back

To calculate the total amount of paint used, convert all mixed fractions to improper fractions, find a common denominator, and then add them together.