(-7)/(4)-(4)/(-9) - subtraction of fractions

Solution for the given fractions

• -7/4 - 4/(-9) = ?
• The common denominator of the two fractions is: 36
• -7/4 = (-7*9)/(4*9) = -63/36
• 4/(-9) = (-4*4)/(-9*(-4)) = -16/36
• Fractions adjusted to a common denominator
• -7/4 - 4/(-9) = -63/36 - -16/36
• -63/36 - -16/36 = (16-63)/36
• (16-63)/36 = -47/36

Solution for the given fractions

$ -\frac{7}{4 }-\frac{ 4}{(-9)} =? $

The common denominator of the two fractions is: 36

$ -\frac{7}{4 }= \frac{(-7*9)}{(4*9)} = -\frac{63}{36} $

$ \frac{4}{(-9)} = \frac{(-4*4)}{(-9*(-4))} = -\frac{16}{36} $

Fractions adjusted to a common denominator

$ -\frac{7}{4 }-\frac{ 4}{(-9)} = -\frac{63}{36 }- -\frac{16}{36} $

$ -\frac{63}{36 }- -\frac{16}{36 }= \frac{(16-63)}{36} $

$ \frac{(16-63)}{36 }= -\frac{47}{36} $

$ $

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