[51 -(18 3/4 - 1÷ 8/15 )× 1 23/25]÷ 0.62

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[51-(183/4-1÷8/15)×123/25]÷0.62[51-(183/4-1÷8/15)×123/25]÷0.62[51-(183/4-1÷8/15)×123/25]÷0.62[51-(18

[51 -(18 3/4 - 1÷ 8/15 )× 1 23/25]÷ 0.62
[51 -(18 3/4 - 1÷ 8/15 )× 1 23/25]÷ 0.62

[51 -(18 3/4 - 1÷ 8/15 )× 1 23/25]÷ 0.62
[51 -(18 3/4 - 1÷ 8/15 )× 1 23/25]÷ 0.62
=[51 -(150/8-15/8)*48/25]/0.62
=(51-135/8*48/25)/0.62
=(255/5-162/5)/0.62
=93/5*100/62
=30