equivalent fractions
1/2 = 6/?
12
2/3 x 3/2
6/6 or 1
LCD of 6 and 12
12
WHEN ADDING FRACTIONS THE DENOMINATORS MUST BE
THE SAME
1/2 + 1/5
7/10
4/5 = 40/?
50
5/3 x 2/10 SIMPLIFIED
1/3
LCD OF 8 AND 5
40
WHEN SUBTRACTING FRACTIONS YOU HAVE TO FIND THE _____________BEFORE YOU CAN SUBTRACT
COMMON DENOMINATOR
2/3 + 1/4
11/12
2/3= 10/?
15
20/31 x 62/20
1240/620 (which equals 2)
LCD OF 3 AND 7
21
How do you make an improper fractions into a mixed number? For instance, 7/5 =
Divide numerator by denominator and then remaining part becomes your new numerator. 7/5 = 1 2/5
3/15 + 2/5
9/15
3/9=1/?
3
1 1/4 x 5/9 =
25/36
LCD 8 AND 7
56
How do you make an mixed number into an improper fraction. For example, 2 4/5 =
Multiply the whole number by the denominator and add the numerator to get your new numerator. For example, 2 4/5 =14/5
2/3 - 1/4
5/12
300/700= 3/
7
3 1/2 x 3 1/2
12 1/4
LCM OF 6 AND 9
18
In the area model, you first ____________ to get partial products, then you ____________ them to get your final answer.
MUTLIPLY, ADD
1 1/2 - 1/5
7/10