Solve and choose appropriate answer in simplest form to fill in the blanks:
$\frac{20}{30} - \frac{10}{30} =___$
[ $\frac{10}{30}$ / $\frac{1}{3}$ ]

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Solution

Step 1: As these are the like fractions, subtract the numerators and write the difference over the common denominator.
$\frac{20}{30} - \frac{10}{30} = \frac{20 - 10}{30} = \frac{10}{30}$
Step 2: It can be observed that $10$ is the common factor of $10$ and $30$ . Divide the numerator and denominator by the common factor $10$ .
$\frac{10 \div 10}{30 \div 10} = \frac{1}{3}$
Hence, the simplest form of $\frac{10}{30}$ is $\frac{1}{3}$ .

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