Write improper fraction into proper fraction
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To add fractions the denominators must be equal.
\Find the least common denominator (LCD).
\Write the prime factorization of each denominator.
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Multiply the highest power of each factor in either number.
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LCD of the fractions is 20.
Rewrite the equivalent fractions using the LCD.
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Rewrite the expression using the LCD.
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Denominators are same, write sum of numerators over denominator.
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Subtract the numerators.
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Simplify the expression.
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The sum is 
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