To determine how much above normal the snowfall was last year in Milwaukee, we can follow these steps:
1. Identify the snowfall from last year: The total snowfall last year was 92 inches.
2. Determine the normal snowfall: The normal fall is [tex]\( 52 \frac{1}{4} \)[/tex] inches, which can be converted to a decimal. The mixed number [tex]\( 52 \frac{1}{4} \)[/tex] is equivalent to [tex]\( 52 + 0.25 \)[/tex] or 52.25 inches.
3. Calculate the difference: To find out how much above normal the snowfall was last year, subtract the normal snowfall from the last year's snowfall.
[tex]\[
\text{Difference} = \text{Last Year's Snowfall} - \text{Normal Snowfall}
\][/tex]
Substituting the values:
[tex]\[
\text{Difference} = 92\ \text{inches} - 52.25\ \text{inches}
\][/tex]
4. Perform the subtraction:
[tex]\[
92 - 52.25 = 39.75\ \text{inches}
\][/tex]
Therefore, the snowfall last year was 39.75 inches above normal.