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$\color{#FF6800}{ 3 \dfrac { 1 } { 2 } } - 2 \dfrac { 3 } { 8 } + 1 \dfrac { 1 } { 6 }$

$ $ Convert mixed number into improper fraction $ $

$\color{#FF6800}{ \dfrac { 7 } { 2 } } - 2 \dfrac { 3 } { 8 } + 1 \dfrac { 1 } { 6 }$

$\dfrac { 7 } { 2 } \color{#FF6800}{ - } \color{#FF6800}{ 2 \dfrac { 3 } { 8 } } + 1 \dfrac { 1 } { 6 }$

$ $ Convert mixed number into improper fraction $ $

$\dfrac { 7 } { 2 } \color{#FF6800}{ - } \color{#FF6800}{ \dfrac { 19 } { 8 } } + 1 \dfrac { 1 } { 6 }$

$\dfrac { 7 } { 2 } - \dfrac { 19 } { 8 } + \color{#FF6800}{ 1 \dfrac { 1 } { 6 } }$

$ $ Convert mixed number into improper fraction $ $

$\dfrac { 7 } { 2 } - \dfrac { 19 } { 8 } + \color{#FF6800}{ \dfrac { 7 } { 6 } }$

$\dfrac { 7 } { \color{#FF6800}{ 2 } } - \dfrac { 19 } { \color{#FF6800}{ 8 } } + \dfrac { 7 } { \color{#FF6800}{ 6 } }$

$ $ The smallest common multiple in denominator is $ 24$

$\dfrac { 7 } { \color{#FF6800}{ 2 } } - \dfrac { 19 } { \color{#FF6800}{ 8 } } + \dfrac { 7 } { \color{#FF6800}{ 6 } }$

$\dfrac { 7 } { 2 } - \dfrac { 19 } { 8 } + \dfrac { 7 } { 6 }$

$ $ Multiply the denominator and the numerator so that the denominator is the smallest common multiple $ $

$\dfrac { 7 \times \color{#FF6800}{ 12 } } { 2 \times \color{#FF6800}{ 12 } } - \dfrac { 19 \times \color{#FF6800}{ 3 } } { 8 \times \color{#FF6800}{ 3 } } + \dfrac { 7 \times \color{#FF6800}{ 4 } } { 6 \times \color{#FF6800}{ 4 } }$

$\color{#FF6800}{ \dfrac { 7 \times 12 } { 2 \times 12 } } \color{#FF6800}{ - } \color{#FF6800}{ \dfrac { 19 \times 3 } { 8 \times 3 } } \color{#FF6800}{ + } \color{#FF6800}{ \dfrac { 7 \times 4 } { 6 \times 4 } }$

$ $ Organize the expression $ $

$\color{#FF6800}{ \dfrac { 84 } { 24 } } \color{#FF6800}{ - } \color{#FF6800}{ \dfrac { 57 } { 24 } } \color{#FF6800}{ + } \color{#FF6800}{ \dfrac { 28 } { 24 } }$

$\color{#FF6800}{ \dfrac { 84 } { 24 } } \color{#FF6800}{ - } \color{#FF6800}{ \dfrac { 57 } { 24 } } \color{#FF6800}{ + } \color{#FF6800}{ \dfrac { 28 } { 24 } }$

$ $ Since the denominator is the same as $ 24 $ , combine the fractions into one $ $

$\color{#FF6800}{ \dfrac { 84 - 57 + 28 } { 24 } }$

$\dfrac { \color{#FF6800}{ 84 } \color{#FF6800}{ - } \color{#FF6800}{ 57 } \color{#FF6800}{ + } \color{#FF6800}{ 28 } } { 24 }$

$ $ Calculate the sum or the difference $ $

$\dfrac { \color{#FF6800}{ 55 } } { 24 }$