Add and Subtraction Fractions

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

How do you add fractions with the same denominator?

Back

To add fractions with the same denominator, keep the denominator the same and add the numerators. For example, 1/4 + 2/4 = (1+2)/4 = 3/4.

Front

How do you subtract fractions with the same denominator?

Back

To subtract fractions with the same denominator, keep the denominator the same and subtract the numerators. For example, 3/5 - 1/5 = (3-1)/5 = 2/5.

Front

What is the first step in adding fractions with different denominators?

Back

The first step is to find a common denominator, which is a multiple of both denominators.

Front

How do you find a common denominator for 1/3 and 1/4?

Back

The least common denominator (LCD) of 3 and 4 is 12. Convert 1/3 to 4/12 and 1/4 to 3/12.

Front

What is the process to add 1/3 and 1/4?

Back

Convert to a common denominator: 1/3 = 4/12 and 1/4 = 3/12. Then add: 4/12 + 3/12 = 7/12.

Front

What is a mixed number?

Back

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

Front

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

Back

Divide the numerator by the denominator. The quotient is the whole number, and the remainder is the numerator of the fraction.

Front

What is the result of subtracting 1/2 from 3/4?

Back

Convert 1/2 to 2/4. Then, 3/4 - 2/4 = 1/4.

Front

What is the fraction of students wearing white or blue shirts if 3 out of 12 wear white and 6 wear blue?

Back

9 out of 12 students wear either white or blue shirts, which simplifies to 3/4.