what you'll learn...
overview
Conversion of ratio to percentage and fraction to percentage are explained. The most important part is to understand the context in which a ratio or fraction is given and handle the conversion accordingly.
ratio conversion examples
Converting the ratio 3 is to 12 to percentage.
100×3/12100×3/12 =25%=25%
Converting the percentage 50%50% to ratio.
50%=50:100=1:250%=50:100=1:2
Note that a percentage is given in a context, like the number of apples is 50%50% of the number of oranges.
When the percentage is converted to a ratio, the ratio is specified in the same context, like the number of apples to number or oranges is in 1:21:2 ratio.
fraction conversion examples
Converting 40% into a fraction.
40%=40/100=2/5
Converting 35 into a percentage.
3/5=35×100%=60%
Note that a percentage is given in a context, like the number of apples is 50% of the number of oranges.
When the percentage is converted to a fraction, the fraction is specified in the same context, like the number of apples is 1/2 fraction of number of oranges.
summary
Conversion of ratio to percentage and fraction to percentage are explained. The most important part is to understand the context in which a ratio or fraction is given and handle the conversion accordingly.
Outline
The outline of material to learn "commercial arithmetics" is as follows.
Note: Click here for the detailed ouline of commercial arthmetics.
• Ratio, Proportion, Percentage
→ Comparing Quantities
→ Introduction to Ratio
→ Ration & Fraction Differences
→ ProportionsP
→ Percentages
→ Conversion to percentage
• Unitary Method
→ Introduction to Unitary Method
→ Direct Variation
→ Inverse Variation
→ DIV Pair
• Simple & Compound Interest
→ Story of Interest
→ Simple Interest
→ Compound Interest
• Rate•Span=Aggregate
→ Understanding Rate-Span
→ Speed • Time=Distance
→ Work-rate • time = Work-amount
→ Fill-rate • time = Filled-amount
• Profit-Loss-Discount-Tax
→ Profit-Loss
→ Discount
→ Tax
→ Formulas