Пошаговое объяснение:
8.5, 24 82/365
1)
2 2/15*6 1/4=32/15*25/4=8*5/3*1=40/3
5 1/3*1 1/8=16/3*9/8=16*9/3*8=2*3/1*4=6/4=3/2
40/3-3/2=80/6-9/6=71/6
1/3*71/6=1*71/3*6=71/18
71/18+4 5/9=71/18+41/9=71/18+82/18=153/18=8.5
2)
1 4/5=9/5
1 2/5=7/5
(1 4/5*(12 7/12 - 9 19/36)=
=9/5*(201/12-343/36)=
=9/5*(603/36-343/36)=
=9/5*260/36=2340/365=6 150/365
17/35*1 11/34=17/35*45/34=1/7*8/2=8/14
1 2/5*6 150/365=7/5*6 150/365=6 1050/1825=6 210/365
30 4/5-6 210/365=24 292/365-210/365=24 82/365
Пошаговое объяснение:
8.5, 24 82/365
Пошаговое объяснение:
1)
2 2/15*6 1/4=32/15*25/4=8*5/3*1=40/3
5 1/3*1 1/8=16/3*9/8=16*9/3*8=2*3/1*4=6/4=3/2
40/3-3/2=80/6-9/6=71/6
1/3*71/6=1*71/3*6=71/18
71/18+4 5/9=71/18+41/9=71/18+82/18=153/18=8.5
2)
1 4/5=9/5
1 2/5=7/5
(1 4/5*(12 7/12 - 9 19/36)=
=9/5*(201/12-343/36)=
=9/5*(603/36-343/36)=
=9/5*260/36=2340/365=6 150/365
17/35*1 11/34=17/35*45/34=1/7*8/2=8/14
1 2/5*6 150/365=7/5*6 150/365=6 1050/1825=6 210/365
30 4/5-6 210/365=24 292/365-210/365=24 82/365