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There are **18** NRICH Mathematical resources connected to **Equivalent fractions, decimals and percentages**, you may find related items under Fractions, decimals, percentages, ratio and proportion.

Problem
Primary curriculum
Secondary curriculum
### Terminating or Not

Is there a quick way to work out whether a fraction terminates or recurs when you write it as a decimal?

Age 11 to 14

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Tumbling Down

Watch this animation. What do you see? Can you explain why this happens?

Age 7 to 11

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Almost One

Choose some fractions and add them together. Can you get close to 1?

Age 11 to 14

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Matching Fractions

Can you find different ways of showing the same fraction? Try this matching game and see.

Age 7 to 11

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Bryony's Triangle

Watch the video to see how to fold a square of paper to create a flower. What fraction of the piece of paper is the small triangle?

Age 7 to 11

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Doughnut Percents

A task involving the equivalence between fractions, percentages and decimals which depends on members of the group noticing the needs of others and responding.

Age 7 to 14

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### The Greedy Algorithm

The Egyptians expressed all fractions as the sum of different unit fractions. The Greedy Algorithm might provide us with an efficient way of doing this.

Age 11 to 14

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Power Match

Can you locate these values on this interactive logarithmic scale?

Age 16 to 18

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Round and Round and Round

Where will the point stop after it has turned through 30 000 degrees? I took out my calculator and typed 30 000 รท 360. How did this help?

Age 11 to 14

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Fractions Jigsaw

A jigsaw where pieces only go together if the fractions are equivalent.

Age 11 to 14

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Fractional Wall

Using the picture of the fraction wall, can you find equivalent fractions?

Age 7 to 11

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Fractional Triangles

Use the lines on this figure to show how the square can be divided into 2 halves, 3 thirds, 6 sixths and 9 ninths.

Age 7 to 11

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Tiny Nines

What do you notice about these families of recurring decimals?

Age 14 to 16

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Matching Fractions, Decimals and Percentages

Can you match pairs of fractions, decimals and percentages, and beat your previous scores?

Age 7 to 14

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Linked Chains

Can you find ways to make twenty-link chains from these smaller chains? This gives opportunities for different approaches.

Age 7 to 11

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Fraction Lengths

Can you find combinations of strips of paper which equal the length of the black strip? If the length of the black is 1, how could you write the sum of the strips?

Age 7 to 11

Challenge Level