Add and Subtract Mixed Numbers

What is a mixed number?

• A whole number only, such as 2.

• A fraction only, such as 1/2.

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

• A decimal number, such as 2.5.

How do you find the least common denominator?

• By adding the denominators together

• By multiplying the denominators

• To find the least common denominator, list the multiples of each denominator and find the smallest multiple they share.

• By taking the average of the denominators

How do you add fractions with different denominators?

• Find the greatest common denominator, convert the fractions, then add the numerators.

• Find the least common denominator, convert the fractions, then add the numerators.

• Add the fractions directly without changing the denominators.

• Multiply the denominators and add the numerators.

What is the difference between 3 3/4 and 1 1/2?

• 2 1/4

• 1 1/4

• 3 1/4

• 2 3/4

How do you add mixed numbers?

• First add the whole numbers, then add the fractions. If the fraction sum is improper, convert it to a mixed number.

• Add the fractions first, then add the whole numbers.

• Multiply the whole numbers and add the fractions together.

• Subtract the fractions from the whole numbers.

What is the greatest common factor (GCF)?

• The smallest number that divides two or more numbers without leaving a remainder.

• The largest number that divides two or more numbers without leaving a remainder.

• The sum of all factors of a number.

• The product of two numbers.

How do you 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.

• Divide the numerator by the denominator and keep the whole number as is.

• Subtract the numerator from the whole number and place it over the denominator.

• Multiply the denominator by the whole number and subtract the numerator from the result.

What is the least common denominator (LCD)?

• The largest number that can be a common denominator for two or more fractions.

• The smallest number that can be a common denominator for two or more fractions.

• The sum of the denominators of two or more fractions.

• The difference between the denominators of two or more fractions.

What is the process of borrowing in subtraction?

• Borrowing in subtraction involves taking 1 from the whole number to convert it into a fraction, allowing for easier subtraction.

• Borrowing in subtraction means adding the numbers together to find a total.

• Borrowing in subtraction is the process of ignoring the smaller number and taking the larger number.

• Borrowing in subtraction refers to the method of rounding up the numbers before subtracting.

How do you subtract mixed numbers?

• First subtract the whole numbers, then subtract the fractions. If the fraction from the first mixed number is smaller than the second, borrow from the whole number.

• Add the whole numbers together and then add the fractions.

• Subtract the fractions first, then the whole numbers, without borrowing.

• Convert the mixed numbers to improper fractions before subtracting.