(-5)/(-7)+(1)/(9) - adding of fractions

Solution for the given fractions

• -5/(-7) + 1/9 = ?
• The common denominator of the two fractions is: 63
• -5/(-7) = (-9*(-5))/(-9*(-7)) = 45/63
• 1/9 = (1*7)/(7*9) = 7/63
• Fractions adjusted to a common denominator
• -5/(-7) + 1/9 = 45/63 + 7/63
• 45/63 + 7/63 = (7+45)/63
• (7+45)/63 = 52/63

Solution for the given fractions

$ -\frac{5}{(-7)} +\frac{ 1}{9 }=? $

The common denominator of the two fractions is: 63

$ -\frac{5}{(-7)} = \frac{(-9*(-5))}{(-9*(-7))} =\frac{ 45}{63} $

$ \frac{1}{9 }= \frac{(1*7)}{(7*9)} =\frac{ 7}{63} $

Fractions adjusted to a common denominator

$ -\frac{5}{(-7)} +\frac{ 1}{9 }=\frac{ 45}{63 }+\frac{ 7}{63} $

$ \frac{45}{63 }+\frac{ 7}{63 }= \frac{(7+45)}{63} $

$ \frac{(7+45)}{63 }=\frac{ 52}{63} $

$ $

see mathematical notation