CLASS 6 · LEARNING KNOWLEDGE
Ratios, proportions and simple percentages
How it works
One percent is one hundredth. A ratio can be described as a fraction or with a colon. Equivalent ratios arise by multiplying both numbers by the same factor.
Note
p %=p/100; Proportion=(Part/Whole)·100 %.
p %=p/100; Proportion=(Part/Whole)·100 %.
An example
How much is 90 % of 300? Give only the sought number.
Divide the percentage rate by 100 and multiply by 300. Result: 270.
Try it yourself now
50 Exercises · three difficulty levels · selection and number input
To the learning unit →Own explanation and own practice exercises by AmyMath. Subject reference framework: KMK Educational Standards Mathematics ESA/MSA. The topic assignment may vary by federal state.