(10)/(9)-(7)/(18) - subtraction of fractions

Solution for the given fractions

• 10/9 - 7/18 = ?
• The common denominator of the two fractions is: 18
• 10/9 = (2*10)/(2*9) = 20/18
• 7/18 = (1*7)/(1*18) = 7/18
• Fractions adjusted to a common denominator
• 10/9 - 7/18 = 20/18 - 7/18
• 20/18 - 7/18 = (20-7)/18
• (20-7)/18 = 13/18

Solution for the given fractions

$ \frac{10}{9 }-\frac{ 7}{18 }=? $

The common denominator of the two fractions is: 18

$ \frac{10}{9 }= \frac{(2*10)}{(2*9)} =\frac{ 20}{18} $

$ \frac{7}{18 }= \frac{(1*7)}{(1*18)} =\frac{ 7}{18} $

Fractions adjusted to a common denominator

$ \frac{10}{9 }-\frac{ 7}{18 }=\frac{ 20}{18 }-\frac{ 7}{18} $

$ \frac{20}{18 }-\frac{ 7}{18 }= \frac{(20-7)}{18} $

$ \frac{(20-7)}{18 }=\frac{ 13}{18} $

$ $

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