Solve and choose appropriate answer in simplest form to fill in the blanks:
$\frac{7}{10} - \frac{2}{10} =___$
[ $\frac{1}{2}$ / $\frac{5}{10}$ ]

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Solution

Step 1: As these are the like fractions, subtract the numerators and write the difference over the common denominator.
$\frac{7}{10} - \frac{2}{10} = \frac{7 - 2}{10} = \frac{5}{10}$
Step 2: It can be observed that $5$ is the common factor of $5$ and $10$ . Divide the numerator and denominator by the common factor $5$ .
$\frac{5 \div 5}{10 \div 5} = \frac{1}{2}$
Hence, the simplest form of $\frac{5}{10}$ is $\frac{1}{2}$ .

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