Rational Number Word Problems - 7.NS.3

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 add two rational numbers with different denominators?

Back

To add two rational numbers with different denominators, find a common denominator, convert each fraction, and then add the numerators.

Front

What is the process to subtract rational numbers?

Back

To subtract rational numbers, find a common denominator, convert the fractions, and then subtract the numerators.

Front

How do you multiply two rational numbers?

Back

To multiply two rational numbers, multiply the numerators together and the denominators together.

Front

What is the rule for dividing rational numbers?

Back

To divide rational numbers, multiply by the reciprocal of the divisor.

Front

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

Back

Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

Front

What is the significance of negative numbers in rational number problems?

Back

Negative numbers represent values less than zero and can affect the outcome of calculations involving rational numbers.

Front

How do you find the difference between two temperatures, one positive and one negative?

Back

To find the difference, subtract the negative temperature from the positive temperature, which is equivalent to adding the absolute values.

Front

What is the formula to calculate total earnings based on hourly wage and hours worked?

Back

Total earnings = Hourly wage × Hours worked.

Front

How do you solve a word problem involving multiple steps?

Back

Break the problem into smaller parts, solve each part step by step, and combine the results.