Steps
What is the first step when solving adding and subtracting mixed numbers with unlike denominators?
Find a common denominator.
1/2+1/4
3/4
1/2-1/4
1/4
What is a denominator?
The bottom number in a fraction.
What is the second step when adding and subtracting mixed numbers with unlike denominators?
Finding new numerators.
1/6+2/3
5/6
2/3-1/6
3/6 or 1/2
What is a numerator?
The top number in a fraction.
What is the third step when adding and subtracting mixed numbers with unlike denominators?
Change mixed numbers to improper fractions.
1/5+3/10
5/10 or 1/2
1/5-1/10
1/10
What does equivalent mean?
Equal in value or the same in value.
What is the fourth step when adding and subtracting mixed numbers with unlike denominators?
Add or Subtract
6/12+2/6
10/12 or 5/6
2/4-2/8
2/8 or 1/4
What does simplify mean?
To reduce a fraction make the fraction as small as possible.
What is the fifth step with adding or subtracting mixed numbers with unlike denominators?
Simplify and check
2/7+7/14
11/14
4/6-1/12
7/12
What is a common denominator?
When the bottom number of the fraction is the same for both fractions.