Writing and Simplifying Ratio

There are some counters in a box.

$15\displaystyle \frac{1}{5}$ of the counters are red.

The rest of the counters are blue.

Write the ratio of the number of red counters to the number of blue counters.

Give your answer in the form $1 : n$

[2]

There are some counters in a box.

$15\displaystyle \frac{1}{5}$ of the counters are red.

The rest of the counters are blue.

Write the ratio of the number of red counters to the number of blue counters.

Give your answer in the form $1 : n$

[2]

Writing and Simplifying Ratio Questions