Roughback Leaper

21 87 x 0.466 = 10 19

0.466

40 x 0.508 = 20.32

0.508

7 x 0.246 = 1.722

0.246

0 x 0.022 = 0

0.022 10  40

9 37 x 1 = 9 37

9  37