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Subtract. $\newline$ $\frac{7}{10} - \frac{3}{5} =$ _____

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Add and subtract rational numbers

Full solution

Q. Subtract.

\newline

\frac{7}{10} - \frac{3}{5} =

_____

Write Subtraction Problem: Write the subtraction problem with a common denominator. $\newline$ $\frac{7}{10} - \frac{3}{5}$ $\newline$ Since the denominators are different, we need to find a common denominator. The least common denominator (LCD) for $10$ and $5$ is $10$ . $\newline$ $\frac{3}{5}$ can be converted to $\frac{6}{10}$ because $3 \times 2 = 6$ and $5 \times 2 = 10$ . $\newline$ Now we have $\frac{7}{10} - \frac{6}{10}$ .
Subtract Numerators: Subtract the numerators and write the result over the common denominator. $\newline$ $\frac{7}{10} - \frac{6}{10} = \frac{(7 - 6)}{10}$ $\newline$ $7 - 6 = 1$ $\newline$ So, $\frac{7}{10} - \frac{6}{10} = \frac{1}{10}$ .
Check for Simplification: Check for any possible simplification. $\frac{1}{10}$ is already in its simplest form, so no further simplification is needed.

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