Видео с ютуба Proportion And Ratio

Ratio and Proportion Word Problems - Math

Math Antics - Proportions

Introduction to ratios | Ratios, proportions, units, and rates | Pre-Algebra | Khan Academy

Math Antics - Ratios And Rates

What is a Ratio in Math? Understand Ratio & Proportion - [6-3-1]

Ratio, Proportion & Rates.

Ratio & Proportion | GRADE 6 Math Made Easy

Ratio and Proportion - Shortcuts & Tricks for Placement Tests, Job Interviews & Exams

Determining if Two Ratios are Proportional (3 Ways) | Proportions | Math with Mr. J

Let’s PRACTICE Ratios, Rates and Proportions…step-by-step…

Ratios | All About Ratios

Соотношение и пропорция | Урок 1 (Введение) | Количественные способности

How to Solve Proportions | Math with Mr. J

Простые навыки — пропорции и соотношения (1), основы и методы, кратчайшие пути, хитрости