Answer:
[tex]2248\frac{1}{4}[/tex]
Step-by-step explanation:
given: [tex]3\frac{1}{8} * 90[/tex]
now, we turn both into improper fractions:
25/8 * 90/1 :: [tex]\frac{25}{8} * \frac{90}{1}[/tex]
now we multiply across
[tex]\frac{25}{8} * \frac{90}{1} = \frac{2250}{8}[/tex]
now turn into a mixed number:
[tex]\frac{2250}{8} = 2248\frac{2}{8}[/tex]
simplify! :
[tex]2248\frac{1}{4}[/tex]