нужно решить по дейсвиям
72*(19/24-7/12^2+3/8)=
15*(1+1/3-1/5)=
(12/7-20/21)*56/16=
7/9-5/6*4/15=
7/8-5/6*9/20=
72*(19/24-7/12^2+3/8)=
15*(1+1/3-1/5)=
(12/7-20/21)*56/16=
7/9-5/6*4/15=
7/8-5/6*9/20=
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Ответ:
72∗(2419−127+83)=72∗(2419−12∗27∗2+8∗33∗3)=72∗(2419−2414+249)==72∗(2419−14+9)=72∗2414=2472∗14=2424∗3∗14=3∗14=42