(7)/(4)-(1)/(5) - subtract fractions

Solution for the given fractions

• 7/4 - 1/5 = ?
• The common denominator of the two fractions is: 20
• 7/4 = (5*7)/(4*5) = 35/20
• 1/5 = (1*4)/(4*5) = 4/20
• Fractions adjusted to a common denominator
• 7/4 - 1/5 = 35/20 - 4/20
• 35/20 - 4/20 = (35-4)/20
• (35-4)/20 = 31/20

Solution for the given fractions

$ \frac{7}{4 }-\frac{ 1}{5 }=? $

The common denominator of the two fractions is: 20

$ \frac{7}{4 }= \frac{(5*7)}{(4*5)} =\frac{ 35}{20} $

$ \frac{1}{5 }= \frac{(1*4)}{(4*5)} =\frac{ 4}{20} $

Fractions adjusted to a common denominator

$ \frac{7}{4 }-\frac{ 1}{5 }=\frac{ 35}{20 }-\frac{ 4}{20} $

$ \frac{35}{20 }-\frac{ 4}{20 }= \frac{(35-4)}{20} $

$ \frac{(35-4)}{20 }=\frac{ 31}{20} $

$ $

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