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

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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 ...

“Do you see the pattern? Each number in the series after the first two numbers is the sum of the preceding two numbers.” That’s how I began my last column focusing on the Fibonacci sequence, which ...