(31)/(8)-(21)/(6) - subtract fractions

Solution for the given fractions

• 31/8 - 21/6 = ?
• The common denominator of the two fractions is: 24
• 31/8 = (3*31)/(3*8) = 93/24
• 21/6 = (4*21)/(4*6) = 84/24
• Fractions adjusted to a common denominator
• 31/8 - 21/6 = 93/24 - 84/24
• 93/24 - 84/24 = (93-84)/24
• (93-84)/24 = 9/24
• 9/24 = 3/8

Solution for the given fractions

$ \frac{31}{8 }-\frac{ 21}{6 }=? $

The common denominator of the two fractions is: 24

$ \frac{31}{8 }= \frac{(3*31)}{(3*8)} =\frac{ 93}{24} $

$ \frac{21}{6 }= \frac{(4*21)}{(4*6)} =\frac{ 84}{24} $

Fractions adjusted to a common denominator

$ \frac{31}{8 }-\frac{ 21}{6 }=\frac{ 93}{24 }-\frac{ 84}{24} $

$ \frac{93}{24 }-\frac{ 84}{24 }= \frac{(93-84)}{24} $

$ \frac{(93-84)}{24 }=\frac{ 9}{24} $

$ \frac{9}{24 }=\frac{ 3}{8} $

$ $

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