It is a part of a whole or a portion of a certain number. It uses a slash between numbers in the relationship. 

 It is a quick way to compare numbers that uses a colon between the numbers in the relationship.

The key to preventing accidents is the identification and elimination of hazards

Hazards are grouped together to determine their probability of causing an accident.

how many tablespoons are in a cup

Substitution is replacing or substituting a hazardous agent, equipment, or work process with a less dangerous one.

using flashlight or rechargeable lamp rather than use candles that can start a fire is an example of?

wearing facemask to avoid spreading virus is an example of?

There is a shattered glass on the floor i should pick up the large pieces and use broom and dustpan to remove the small particles before anyone steps on it