31/15-3/4=124/60-45/60=79/60=1 19/60
Ответ: 1 целая 19/60.
(31/15)-(3/4)=(31*4-3*15)*(15*4)=(124-45)/60=79/60.
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31/15-3/4=124/60-45/60=79/60=1 19/60
Ответ: 1 целая 19/60.
(31/15)-(3/4)=(31*4-3*15)*(15*4)=(124-45)/60=79/60.