Respuesta:
[tex]= \frac{ 20 }{12}[/tex]
Explicación paso a paso:
[tex]2 \frac {1 }{4} -\frac { 7 }{12} = \frac{ 1 + 2\cdot4 }{4} - \frac{7 }{12} = \frac{ 9 }{4} - \frac{7 }{12} = \frac { 9\cdot3 }{4\cdot3} - \frac {7\cdot1 }{12\cdot1} = \frac{ 27 }{12} - \frac{ 7 }{12} = \frac {27 - 7 }{12} = \frac{ 20 }{12}[/tex]
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Respuesta:
[tex]= \frac{ 20 }{12}[/tex]
Explicación paso a paso:
[tex]2 \frac {1 }{4} -\frac { 7 }{12} = \frac{ 1 + 2\cdot4 }{4} - \frac{7 }{12} = \frac{ 9 }{4} - \frac{7 }{12} = \frac { 9\cdot3 }{4\cdot3} - \frac {7\cdot1 }{12\cdot1} = \frac{ 27 }{12} - \frac{ 7 }{12} = \frac {27 - 7 }{12} = \frac{ 20 }{12}[/tex]