Respuesta :

we have

[tex]3\cdot5\frac{1}{4}[/tex]

step 1

Convert mixed number to an improper fraction

5 1/4=5+1/4=21/4

substitute

[tex]3\cdot\frac{21}{4}=\frac{63}{4}[/tex]

Convert to mixed number

63/4=60/4+3/4=15+3/4=15 3/4

therefore

the answer is

15 3/4

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