Simplify the following ratios. If a ratio is already in its simplest form, write the word 'simplified'.

$950 : 50$

Simplify the following ratios. If a ratio is already in its simplest form, write the word 'simplified'.

$13 : 200$

Simplify the following ratios. If a ratio is already in its simplest form, write the word 'simplified'.

$1006 : 988$

Simplify the following ratios. If a ratio is already in its simplest form, write the word 'simplified'.

$64 : 16$

Write three equivalent ratios for each of these ratios : 

$2 : 5$

Write three equivalent ratios for each of these ratios : 

$2 : 18$

Write three equivalent ratios for each of these ratios : 

$9 : 27$

Write three equivalent ratios for each of these ratios : 

$10 : 25$

Write three equivalent ratios for each of these ratios : 

$6 : 7$