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Solving a proportion using cross multiplication

👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion ...
YouTube on MSNOpinion

Solve a proportion by using the cross product and parenthesis ex 20, (b+13)/2 = –5b/3

Sure, here's the description with the links and additional text removed: --- 👉 Learn how to solve proportions. Two ratios ...
BBC

GCSE Maths: Ratio and Proportion

MATT:Welcome to The Maths show with me Matt Parker, today exploring ratio and proportion. MATT:Ratio is when you have different amounts ofingredients in a recipe or a pie… and proportion iswhen you ...
BBC

Ratio and fractions, and sharing in a ratio

Dividing into a given ratio. You can use bar models to divide amounts in a given ratio. For example, Isabel and Geraint share their savings of £96 in the ratio 5 to 3. How much money does each person ...