It would be 8.7 or 8 7/10
Divide both fractions either using calculator or on paper, make them both into improper fractions
87/4 ÷ 5/2
Turn into multiplication and flip 5/2
87/4 × 2/5 = 174/20
Simplify 174/20
8 7/10
Hope this helps you, sorry it took a bit :)