(7)/(8)-(2)/(5) - subtract fractions

Solution for the given fractions

• 7/8 - 2/5 = ?
• The common denominator of the two fractions is: 40
• 7/8 = (5*7)/(5*8) = 35/40
• 2/5 = (2*8)/(5*8) = 16/40
• Fractions adjusted to a common denominator
• 7/8 - 2/5 = 35/40 - 16/40
• 35/40 - 16/40 = (35-16)/40
• (35-16)/40 = 19/40

Solution for the given fractions

$ \frac{7}{8 }-\frac{ 2}{5 }=? $

The common denominator of the two fractions is: 40

$ \frac{7}{8 }= \frac{(5*7)}{(5*8)} =\frac{ 35}{40} $

$ \frac{2}{5 }= \frac{(2*8)}{(5*8)} =\frac{ 16}{40} $

Fractions adjusted to a common denominator

$ \frac{7}{8 }-\frac{ 2}{5 }=\frac{ 35}{40 }-\frac{ 16}{40} $

$ \frac{35}{40 }-\frac{ 16}{40 }= \frac{(35-16)}{40} $

$ \frac{(35-16)}{40 }=\frac{ 19}{40} $

$ $

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