Adding & Subtracting with Mixed Numbers

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a proper fraction, such as 2 \frac{1}{2}.

Front

How do you add mixed numbers?

Back

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

Front

What is the first step in subtracting mixed numbers?

Back

The first step is to subtract the whole numbers, then subtract the fractions. If the fraction from the second mixed number is larger, borrow from the whole number.

Front

What is the least common denominator (LCD)?

Back

The least common denominator is the smallest number that can be used as a common denominator for two or more fractions.

Front

How do you find the least common denominator for \frac{2}{5} and \frac{1}{4}?

Back

The least common denominator for \frac{2}{5} and \frac{1}{4} is 20.

Front

What is the process to convert an improper fraction to a mixed number?

Back

To convert an improper fraction to a mixed number, divide the numerator by the denominator. The quotient is the whole number, and the remainder is the new numerator.

Front

What is the result of \frac{2}{5} + \frac{1}{4}?

Back

The result is \frac{13}{20}.

Front

What is the result of 11 \frac{1}{2} + 10 \frac{3}{5}?

Back

The result is 22 \frac{1}{10}.

Front

What is the result of 4 \frac{1}{8} - 1 \frac{1}{2}?

Back

The result is 2 \frac{5}{8}.

Front

What is the result of 6 - 2 \frac{4}{5}?

Back

The result is 3 \frac{1}{5}.