Vocabulary
Use the ____________ 0, 1/2, of 1 to estimate the sum or difference of fractions.
benchmark fractions
3/7 + 1/3
16/21
8/9 - 2/9=
6/9
2/5 + 1/3=
11/15
7 x 30=
210
The top number of a fraction is called??
Numerator
2 7/8 + 1 2/3=
4 13/24
12/20 - 5/20=
7/20
1/4 + 3/5=
17/20
800 x 8=
6400
The bottom number of a fraction is called?
54 5/6 + 1 1/4=
56 1/12
4 3/10 - 2 3/4=
1 11/20
7/8 - 2/3=
5/24
600 x 5=
3,000
What type of fraction is this? 9/8
Improper fraction
2/10 + 3/5=
5/10 or 1/2
2/3-1/7=
11/21
3/4 -2/3=
7/12
1,200 x 3=
3,600
What is this called 4 1/2?
Mixed number
2/6 + 3/8=
17/24
4 3/5 - 1 1/2=
3 1/10
2/3 + 1/6=
5/6
2,800 x 2=
5,600