RLO: Calculating Medicines for Children

Step 2: Working out the fractions in the equation

Simplify the parts of the fraction to the smallest whole numbers. This makes the equation easier to work out. Remember that whatever you do to the top of the equation you must also do to the bottom of the equation.

Within this equation, you can divide 180 by 10, then 120 by 10, which leaves 18 over 12. Then you can simplify again by dividing the top and bottom by 6 which leaves 3 over 2.

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