Hola, transformamos las fracciones mixtas y luego sumamos:
[tex]2\frac{2}{5} = \frac{12}{5}[/tex]
[tex]3\frac{1}{4} =\frac{13}{4}[/tex]
[tex]5\frac{1}{2} = \frac{11}{2}[/tex]
Sumamos:
[tex]\frac{12}{5} + \frac{13}{4} + \frac{11}{2}[/tex]
[tex]\frac{4x12 + 5x13 + 11x10}{20}[/tex]
[tex]\frac{223}{20} = 11\frac{3}{20}[/tex]
Respuesta: alternativa C) 11 3/20
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Hola, transformamos las fracciones mixtas y luego sumamos:
[tex]2\frac{2}{5} = \frac{12}{5}[/tex]
[tex]3\frac{1}{4} =\frac{13}{4}[/tex]
[tex]5\frac{1}{2} = \frac{11}{2}[/tex]
Sumamos:
[tex]\frac{12}{5} + \frac{13}{4} + \frac{11}{2}[/tex]
[tex]\frac{4x12 + 5x13 + 11x10}{20}[/tex]
[tex]\frac{223}{20} = 11\frac{3}{20}[/tex]
Respuesta: alternativa C) 11 3/20