# Learning Fractions With Mr. Kosta

## First Lesson Adding and Subtracting Fractions

Step 1: First you need to look at the denominators of both of the numbers.

Step 2: Then list the multiples of both of the denominators.

Step 3: Find the least common multiple between the two denominators.

Step 4: Multiple the denominators by a factor that equals the least common denominator.

Step 5: Use the same factor you did with the denominator and use it for the numerator.

Step 6: Now the answers you got for both fractions, use them to add them, you add the numerators , and leave the denominators alone.

You do the same thing for subtraction, except at the end you subtract instead of adding.

## Second Lesson Dividing Fractions

Step 1: First you look at the equation.

Step 2: Keep the first fraction the same, then change the division sign to a multiplication sign, and the last thing you do is switch the denominator and the numerator for the second fraction, otherwise know as their reciprocal.

Step 3: Multiple the numerators and the denominators.

Step 4: Simplify if you can, if you can't that fraction you got will be your answer.

Dividing Fractions

## Lesson 3 Multiplying fractions

Step 1: First you look at the fraction.

Step 2: Multiply the numerators and the denominators.

Multiply Fractions

## Multiplying Decimals

Step 1: Line up the decimals.

Step 2: Multiply the two decimals using algorithm, ignore the decimals.

Step 3: Count how many numbers you have behind the decimal in the equation.

Step 4: Place the decimal from the right of your answer, how ever many numbers you have behind the decimal in your equation.

How Do You Multiply Decimals?

## Lesson 5 Dividing Decimals

Step 1: Make the divisor a whole number by moving the decimal point to the right of the divisor.

Step 2: Move the decimal point in the dividend by the same number of hops you did for the divisor.

Step 3: Divide the numbers normally, ignore the decimal in the dividend.

Step 4: Place the decimal point in the answer lined up with the decimal point in the dividend.

## Lesson 6 Adding and Subtracting Decimals

Step 1: Using algorithm line the decimals up in the equation.

Step 2: Add the two decimals, but ignore the decimal in this step.