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