Пошаговое объяснение:
1 1/48*2 2/5 - (9 1/6 * 4/15 + 2 5/9) * 2/5 = - 1 9/20 = - 1,45 .
1) 11/48 * 2 2/5 = 11/48 * 12/5 = 11/20
2) 9 1/6 * 4/15 = 55/6 * 4/15 = 22/9 = 2 4/9
3) 2 4/9 + 2 5/9 = 4 9/9 = 5
4) 5 * 2/5 = 2
5) 11/20 - 2 = 11/20 - 1 20/20 = - 1 9/20 = -1,45 .
1 1/48*2 2/5-(9 1/6*4/15+2 5/9)*2/5=-1 9/20=-1.45
1)11/48*2 2/5=11/48*12/5=132/240=11/20
2)9 1/6*4/15=55/6*4/15=220/60=22/9= 2 4/9
3)2 4/9+2 5/9=4 9/9 = 5
4)5*2/5=5*0.4=2
5)11/20-2=11/20-1 20/20 =-1 11-20/20= - 1 9/20= -1 9*5/20*5=-1 45/100==-1.45
Пошаговое объяснение:
1 1/48*2 2/5 - (9 1/6 * 4/15 + 2 5/9) * 2/5 = - 1 9/20 = - 1,45 .
1) 11/48 * 2 2/5 = 11/48 * 12/5 = 11/20
2) 9 1/6 * 4/15 = 55/6 * 4/15 = 22/9 = 2 4/9
3) 2 4/9 + 2 5/9 = 4 9/9 = 5
4) 5 * 2/5 = 2
5) 11/20 - 2 = 11/20 - 1 20/20 = - 1 9/20 = -1,45 .
1 1/48*2 2/5-(9 1/6*4/15+2 5/9)*2/5=-1 9/20=-1.45
Пошаговое объяснение:
1)11/48*2 2/5=11/48*12/5=132/240=11/20
2)9 1/6*4/15=55/6*4/15=220/60=22/9= 2 4/9
3)2 4/9+2 5/9=4 9/9 = 5
4)5*2/5=5*0.4=2
5)11/20-2=11/20-1 20/20 =-1 11-20/20= - 1 9/20= -1 9*5/20*5=-1 45/100==-1.45