原式=-4-{9-[3+(2/5)×(11/12)]÷(-2)}+6÷(1/9)
=-4-{9-[3+(11/30)]÷(-2)}+54
=-4-{9+[(101/30)÷2]}+54
=-4-9-(101/60)+54
=41-(101/60)
=2359/60
原式=-4-{9-[3+(2/5)×(11/12)]÷(-2)}+6÷(1/9)
=-4-{9-[3+(11/30)]÷(-2)}+54
=-4-{9+[(101/30)÷2]}+54
=-4-9-(101/60)+54
=41-(101/60)
=2359/60