7th Grade · Ratios & Proportional Relationships

Percent

7.NS.A.2d

Definition

A ratio comparing a quantity to 100 ('per hundred'). A rational number can be written as a fraction, decimal, or percent — all three are equivalent forms.

Examples

  • 3/4 = 0.75 = 75%.
  • 70% = 70/100 = 0.70.

Key rule

Percent is just a fraction with a denominator of 100.

Memory hook

Per cent = per hundred.