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Fractions Inside Reverse Calculations: Finding the Original Amount

If 1/4 of a number is 6, how can we work backwards to discover the whole number? The answer depends on recognising that 6 is one equal part, not the complete amount. This introduces reverse calculation: recovering an original whole from a known fraction of it. The key idea is that equal parts rebuild the whole.

Fractions Inside Reverse Calculations: Finding the Original Amount

This lesson just one in the category Fractions, Decimals, Percentages and Ratio. To access this lesson you need to have a valid learner account, ask your parent to register you now.