Math

Solve and Simplify Ratios

Built by Kevin Glover · @gloverbuilds · Verified formula

Simplify ratios, find missing values, and scale proportions. Solve A:B = C:? problems instantly.

📅 Updated April 2026 ✅ Formula verified 📖 4 min read 🆓 Free · No sign-up

In this article

Understanding Ratios
Scaling Ratios

Proporções

3:2 significa 3 partes de A para 2 de B. Para adaptar: multiplique ambos os lados. 3:2 para 50 peças: 3/(3+2) × 50 = 30 de A, 20 de B. Em receitas: proporção 5:1 farinha:fermento = 500g:100g.

Simplificação

Divida pelo MDC. 12:8 → ÷4 → 3:2. Proporções expressam relações, não quantidades absolutas.

⚡ CalcWolf Insight

Ratio questions dominate standardized tests (SAT, GRE, ACT). The most common mistake: confusing "ratio of A to B" with "fraction A/B." A 3:2 ratio means 3 parts A and 2 parts B out of 5 total parts — so A is 3/5 of the total, not 3/2.

Frequently asked questions

Como simplificar?▾

Divida ambos pelo MDC. 15:10 ÷ 5 = 3:2.

Como escalar receita?▾

Multiplique ambos. 3:1 para 2 kg total: 1.500g:500g.

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Kevin Glover · @gloverbuilds

Founder, CalcWolf · GLVTS · Blickr

All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →