Adding and Subtracting Fractions

Adding Fractions

100

1/3+1/3=

2/3

200

2/6+3/6=

5/6

300

5/10+4/10=

9/10

400

1/10+5/10=

6/10

500

3/7+2/7=

5/7

Subtracting Fractions

100

1/2-1/2=

0 or 0/2

200

3/3-1/3=

2/3

300

4/10-2/10=

2/10

400

7/8-6/8=

1/8

500

5/8-3/8=

2/8

Adding Fractions Word Problems

100

1/4 of the crops collected during the Spring are corn. 2/4 of the crops collected are pumpkins. What fraction of corn and pumpkins were collected?

3/4

200

1/5 of the land was given to the American settlers by the Native Americans. 3/5 of the land still belongs to the Native Americans. How much land do the American settlers and Native Americans have all together?

4/5

300

5/9 of the tobacco plants are dead. 1/9 of the tobacco plants are dying. How many tobacco plants are dead or dying?

6/9

400

3/10 of the upper class women go to tea on Monday's. 2/10 of the upper class women go to tea on Wednesday's. What fraction of the women in the upper class go to tea on Monday's and Wednesday's?

5/10

500

5/8 of the children in a town go to school. 1/8 of the children in the town work in fields collecting crops. What fraction of the children go to school and work in the fields collecting crops?

6/8

Subtracting Fractions Word Problems

100

1/4 of the spring season is used for planting crops. 2/4 is used for tending to the crops. What fraction of the season is left for harvesting crops?

1/4

200

Joanie's mom wants to bring mashed potatoes to the community potluck. She has peeled 4/10 of the potatoes. What fraction of potatoes are left to peel?

6/10

300

5/9 of the squash in the colony garden are ready to be picked. 3/9 of the squash in the colony garden are rotten. The rest of the squash are not ripe yet. How many of the squash are not ripe yet?

1/9

400

The Native Americans are moving towards the west. 2/9 of the families are packed. 3/9 of the families are almost packed. The rest of the families are not packed. What fraction of families are not packed?

4/9

500

On one boat traveling to America, there are 10 English settlers. 6/10 of the English settlers are women and children. The rest are men. What fraction of the settlers are men?

4/10

Parts of a Fraction

100

What is the top number in a fraction called?

Numerator

200

What is the bottom number in a fraction called?

Denominator

300

What does a fraction tell you?

Parts of a whole

400

Do you add the denominator when adding fractions?

No

500

Can you add fractions with a different denominator the same way you add fractions with the same denominator?

ex. 2/4+1/3 and 2/4+1/4

No