Exercise 3j Fractions

Aida practiced on the organ for $$1\frac{1}{2}$$ hours. After that she played badminton for $$\frac{4}{5}$$ of an hour. Find the total time she spent on the two activities.

On Thursday, Jean ran $$1\frac{2}{3}$$ km, On Friday, she ran $$2\frac{3}{5}$$ km.

Find the total distance she ran in two days.

What fraction of cake remains when $$\frac{3}{8}$$ of the cake has been eaten?

A boy spent $$\frac{7}{24}$$ of his pocket money on Monday, $$\frac{1}{4}$$ on Tuesday and $$\frac{1}{3}$$ on Wednesday. What fraction of his pocket money had he left on Thursday?

John has $$9\frac{1}{4}$$ liters of paint. After using $$4\frac{1}{2}$$ liters for painting a room,

how much paint has he left?

During the school’s spring cleaning day, Robin and his classmates spent $$1\frac{1}{4}$$ hours and $$1\frac{1}{12}$$ hours cleaning two classrooms assigned to them respectively.

a. Find the total time they spent.

During the school’s spring cleaning day, Robin and his classmates spent $$1\frac{1}{4}$$ hours and $$1\frac{1}{12}$$ hours cleaning two classrooms assigned to them respectively.

b. How much longer did they spend in cleaning one classroom than the other?

A farmer grew 324 tomato plants but 18 of them died.

What fraction of the original number of plants survived?

There are 130 balls in a pit of which 40 are red. The rest of the balls consist of yellow and blue ones. There are twice as many yellow balls as blue ones.

Give the fraction of blue balls in the simplest form.