Percents, ratios, and proportional reasoning
Use fractions, decimals, and percents interchangeably (including percents over 100% and under 1%), and solve proportional-reasoning problems. Unlimited questions, five difficulty levels, and a full worked solution every time — free.
Try one
What is 0.25% of 30?
Answer: 0.075
See one solved, step by step
Solve the proportion for the missing value.
73 = 35/x
📘 Worked solution
135 / 7 = 5Figure out what 7 was multiplied by to get 35.
2x = 3 · 5 = 15Multiply 3 by the same factor 5 to keep the proportion true.
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