Fractions

These flashcards cover the basic operations involving fractions, including addition, subtraction, multiplication, division, and conversions between fractions, decimals, and percentages.

What is the process for adding fractions with the same denominator?

Add the two numerators and write the sum over the denominator.

How do you add fractions with different denominators?

Convert each fraction by multiplying both numbers by the lowest common denominator, then add the two numerators and reduce.

What is the procedure for subtracting fractions with the same denominator?

Subtract the numerators and write the difference over the denominator.

How do you subtract fractions with different denominators?

Convert each fraction using the lowest common denominator, then subtract the numerators and reduce.

What are the steps to multiply fractions?

Multiply the numerators across and the denominators across, then reduce to the lowest terms.

How do you multiply mixed numbers?

Change into an improper fraction, then multiply the numerators and denominators.

What is the process for dividing fractions?

Invert the fraction after the division sign, change the division sign to multiplication, and then reduce.

What is rounding off a decimal?

Drop the final number and if it is 5 or more, increase the adjacent number by 1.

How do you convert a percent to a fraction?

Write the percent over 100 and then reduce.

How do you convert a percent to a decimal?

Divide the percent by 100.