+-x and dividing fractions
by Brandon
Multiplying
Example:
1/2
2/2
Step 1. You multiply the top numbers:
Like,
1/2=1 × 2/2
2/2
Step 2. You multiply the bottom numbers:
1/2=1 × 2/2
252 × 510
Step 3. You Simplify if you need to
2/1
105
An example would be
Dividing fractions
Adding fractions (both ways)
- Step 1: You need to make sure the bottom numbers (the denominators) are the same
- Step 2: You add the top numbers (the numerators), put the answer overthe denominator
- Step 3: You simplify the fraction if needed
Here, this will explain it
Subtracting is easy
Subtracting is just like adding
The LCM of 11 and 22 is 22... So the LCD is 22. You just need to change the numbers
Done!
Dividing is easy
Keep change flip
Example:
1/1
1/6
Step 1. You turn the second fraction upside down (it becomes a reciprocal):
1 becomes 6
6/1
Step 2. You multiply the first fraction by that reciprocal:
(multiply tops ...)
1/6=1 × 6/6
212 × 12
(... multiply bottoms)
Step 3. You simplify the fraction: