虫食い算・最大値問題（７）の解答例を示します。
（７）の解
上位10個
1/(4／5)＋6/(3／7)＋8/(2／9) = 205/ 4 (51.25 )
2/(3／4)＋5/(1／8)＋7/(6／9) = 319/ 6 (53.16666… )
2/(3／4)＋5/(1／9)＋7/(6／8) = 57/ 1 (57.0 )
2/(3／4)＋5/(6／7)＋8/(1／9) = 161/ 2 (80.5 )
2/(3／4)＋6/(5／7)＋8/(1／9) = 1246/15 (83.06666… )
2/(3／5)＋6/(4／7)＋8/(1／9) = 515/ 6 (85.83333… )
2/(4／5)＋6/(3／7)＋8/(1／9) = 177/ 2 (88.5 )
3/(2／5)＋6/(4／7)＋8/(1／9) = 90/ 1 (90.0 )
3/(4／5)＋6/(2／7)＋8/(1／9) = 387/ 4 (96.75 )
4/(3／5)＋6/(2／7)＋8/(1／9) = 299/ 3 (99.66666… ) 最大値
