Пошаговое объяснение:
3/16x+5/8x - 1/2x =5/16x
5/16×13/2=80/32=2 1/2=2,5
1/7a+16/21a - 2/3a=5/21a
5/21×21/10=0,5
2/9b+5/3b -1/6b=31/18b
31/18×9/10= 1 11/20
15/34x - 1/17x+1/2x=30/34x
30/34×34/10=3
Пошаговое объяснение:
3/16x+5/8x - 1/2x =5/16x
5/16×13/2=80/32=2 1/2=2,5
1/7a+16/21a - 2/3a=5/21a
5/21×21/10=0,5
2/9b+5/3b -1/6b=31/18b
31/18×9/10= 1 11/20
15/34x - 1/17x+1/2x=30/34x
30/34×34/10=3