Adding Fractions
3/9 + 2/9=
5/9
7/8 - 2/8 =
1/4
fractions with different denominators
unlike fractions
A student did his homework for 1/3 of a hour before school and 2/3 of a hour after school. How long did this student do his work for altogether.
1 hour
the top number in a fraction
numerator
2/6 + 1/4
7/12
5/9 - 1/3=
2/9
Mr. Strzok read for 1/4 of a hour today. He read 2/3 of a hour yesterday. How much longer did Mr. Strzok spend reading yesterday than today?
5/12 hour
Mr. Olsen wants picks 10 1/2 pounds of potatoes on Saturday. He then picks 5 1/4 pounds of potatoes on Sunday. How many more pounds did he pick on Saturday than Sunday?
5 1/4 pounds
fractions with the same denominators
like fractions
1/9 + 1/6 =
5/18
6 3/5 - 3 2/5=
3 1/5
What is the value of 10 3/8 + 2 1/8=
12 1/2
A store sells 14 2/3 pounds of carrots one day. The next day the store sells 2 1/3 pounds of carrots. How many pounds of carrots did the store sell?
17 pounds
a number formed by a whole number and a fraction
mixed number
3 5/6 + 5 10/12=
9 2/3
5 1/8 - 2 7/8=
2 1/4
What is the value of 8 3/4 + 5 3/4
14 1/2
DOUBLE JEOPARDY- This one is worth double the points!
Rowan and Rocki are calculating their combined height. Rowan is 5 5/6 feet tall, and Rocki is 5 7/12 feet tall. What is Rowan and Rocki's combined height?
11 5/12 feet
changing a number to its closest whole number in order to make multiplication easier
rounding
10 1/8 + 2 1/4=
12 3/8
12 1/5 - 3 9/10=
8 3/10
DOUBLE JEOPARDY- This one is worth double the points!
Mr. Strzok feeds his dog, Jordy, 2/5 of a can of dog food in the morning and 4/5 of a can in the evening. How many cans of dog food will Mr. Strzok need in order to feed his dog for five days?
6 cans
Siobhon is finding the dimensions of her closet door. The closet door is 6 2/5 feet tall and 2 7/8 feet wide. What is the best estimate for how much taller is the closet door than it is wide?
3 feet
the form used when the greatest common factor of the numerator and the denominator is 1
simplest form