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RatioLab
a : b as a decimal, as a percentage — all at once.
A ratio compares two quantities directly — a:b is simply a divided by b, which can then be read as a decimal or converted to a percentage for easier comparison.
Recipe scaling, aspect ratios for screens and photos, and mixing ratios for paint or concrete are all everyday applications of the same underlying idea.
As decimal
1.5
What you entered
Express as a fraction
6 ÷ 4= 1.5Convert to a percentage
1.5 × 100= 150%Result
As decimal: 1.5
6 : 4 simplifies to a decimal ratio of 1.5, or 150%.