# add+subtract+multiply+subtract part

### Joshua

## adding

- Find the Least Common Denominator (LCD)
- multiply the numerator by the same number as the denominator
- add
- simply
- repeat this until you are done

## subtracting

- find the least common denominator (LCD)
- subtract
- simplify

- find the (LCD)
- multiply the numerator by the same number as the denominator
- multiply

## Multiply

- Find the LCD
- Multiply
- Simplify

## divivde

- find the LCD
- Flip the number farthest to the right
- Change the Division symbol to a Multiplication symbol
- Multiply
- Simplify

## multiply decimals

1. write it as if it was just multiplication

2. swoop the decimal

3.multiply

4. bring the decimal back (if you swooped it 1 times for each then swoop back 2 times

## divideing decimalls

1. swoop the dividend the same as the devisor

2. divide

3. put the decimal back wear it goes