Ratio Calculator

The first term: a in the proportion a/b = c/x, or the first part of the ratio a : b.
The second term: b in the proportion a/b = c/x, or the second part of the ratio a : b.
The third term: c in the proportion a/b = c/x. Leave it blank in ratio mode to just simplify a : b.
Answer
0.75
Direct and Inverse Variation Calculator
Constant of variation k
1.333333
Equation of variation
y = 1.33333333333x
What the relationship means
The ratio compares the two quantities; multiplying both parts by the same number leaves it unchanged.
Ratio a / b as a decimal
0.75
Ratio in lowest terms
3:4
The completed statement
18 : 24
Worked out from OpenStax, College Algebra 2e §5.8 "Modeling Using Variation" — direct variation y = kx^n, inverse variation y = k/x^n and joint variation.

How this is worked out

3 steps
  1. The ratio is 18 : 24.
  2. As a decimal: 18 / 24 = 0.75
  3. Divided by the greatest common divisor of the two whole-number parts: 3 : 4

Results are general information, not financial, tax, legal, medical or engineering advice.