$\"\"$

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The expression is $\"\"$ .

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Write the mixed numbers into improper fraction.

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The improper fraction of $\"\"$ ( $\"\"$ )

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The improper fraction of $\"\"$ ( $\"\"$ ) $\"\"$

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To add fractions the denominators must be equal.

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Find the least common denominator (LCD).

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Multiples of 7: $\"\"$

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Multiples of 4: $\"\"$

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The least common multiple of 7 and 4 is 28.

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Rewrite each fraction with a common denominator of 28.

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$\"\"$

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$\"\"$ $\"\"$

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Rewrite fractions using the LCD 28.

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$\"\"$

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$\"\"$ (Simplify)

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$\"\"$ (Subtract: $\"\"$ ) $\"\"$

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Rewrite the improper fraction $\"\"$ as a mixed number.

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Begin by dividing 509 by 28. The remainder will be the numerator of the

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mixed number’s fraction.

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$\"\"$ (Rewrite 509 as $\"\"$ . Remainder is5) $\"\"$

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The value of the expression is $\"\"$ .