НОД(24,60)=12
24/60=2/5
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1 13/15 * 2 4/7 - 5 2/5 : 3 =
= 28/15*18/7 - 27/3 =
4 4/5 - 1 4/5 = 3 - ОТВЕТ
А)=(2+1)((9+4)/12)=3(13/12)=4 1/12
б)=9*((6+9)/10)=9 (15/10)=10 5/10=10 1/2
в)=8((7+15)/20)=8(22/20)=9 2/20=9 1/10
д)=16((75+24)/90)=16 99/90=17 9/90=17 1/10
г)=4((12+5)/15)=4 17/15=5 2/15
5*104+2*103+1*102+0+10+3=520+206+102+3=831
607392:108=5624 607 673 259 432 - 540 -648 -216 - =67 =25 =43 432 = 0