Adding Fractions

When you add or subtract fractions, you add/subtract both the numerator and the denominator.

• True

• False

A contractor was paving a driveway. He mixed 4/7 ton of sand and 1/3 ton of concrete. How much did the mixture weigh?

• 1/4 ton

• 2/5 ton

• 5/7 ton

• 19/21 ton

What number could be a common denominator for these two fractions?
2/3   and   3/4

• 3

• 4

• 7

• 12

Tim did 1/12 of a load of laundry on Sunday and 1/4 of a load of laundry on Saturday. What fraction of laundry did Tim do in total?

• 2/16 loads done 

• 1/3 loads done 

• 2/3 loads done 

• 2/12 loads done 

2 5/10 +1 1/2

• 4 1/10

• 3 5/10

• 5 6/10

• 4

What is the sum of the two fractions shown?

Find the sum.

Find the sum.

What is the sum of these two mixed numbers?

What is the sum of the fractions shown here?