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A : B = C : D
Leave exactly one field blank.
:
Decimals are converted to the simplest integer ratio.
:
Shows both A=1 and B=1 views plus A/B.
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Solve one missing value in A:B=C:D, simplify a ratio including decimals, or normalize two values around 1.
A : B = C : D
Leave exactly one field blank.
Decimals are converted to the simplest integer ratio.
Shows both A=1 and B=1 views plus A/B.
Use one blank in A:B=C:D to solve a proportion, simplify values such as 1920:1080 to 16:9, or view either side normalized to 1.
For 16:9, B/A is 0.5625, or 56.25%. A ratio keeps both quantities visible; a percentage chooses one side as the baseline.
Compare values with compatible units before interpreting a ratio.