Fraction Basics
Adding
Subtracting
Problems
100

When turned into a decimal, does this repeat or terminate:  7/17 

It repeats!  

(although you might not see it on your calculator!)

100

 7/10+1/5 

9/10

100

1/2-3/8

1/8

100

What unit fraction can be added to a half to get  7/10 

1/5

200

Convert to an improper fraction:  4 7/9 

 43/9 

200

1 2/5 + 1 4/5

3 1/5

200

4 - 2 2/7

1 5/7

200

A trail mix recipe calls for half a cup of nuts, half a cup of raisnins, a cup and a quarter of pretzels, a cup and a quarter of doritos and 1/2 a cup of M&Ms.  How many cups of mix does it make?

4 cups!

300

Convert to a mixed number:  82/5 

 16 2/5 

300

3 5/6 + 2 1/4

6 1/12 or 73/12 or 146/24

300

2 1/3 - 5/8

41/24 or 1 17/24

300

A pizza is shared between 3 friends.  Koko ate 1/3 of a pizza, Ainsley ate 1/4 of a pizza and Jordan ate only 1/6.  How much pizza was left over?

3/12 or 1/4

400

Simplify the following:  54/96 

9/16

400

1/6+1/4+1/2

11/12 or 22/24

400

1/3 - 1/5 - 1/10

1/30

400

Today, Elijah ran seven-eighths of a km.  Yesterday he ran only three-quarters of a km.  How much more did he run today?

1/8 km

500

Find the missing number:  8/14=?/35 

20

500
When could we add two non-zero fractions together and get zero for an answer?

If the two fractions were opposites!  (one is the negative version of the other)

500

Is it possible to get a negative answer when subracting fractions?

Of course!  If fraction being subtracted from the first is greater than the first fraction, the answer will be negative.

500

If you add  1/3  to me, I will become 3 times as big, what fraction am I?

1/6