(1)2×
2
3 -
1
3 ,
=
4
3 -
1
3 ,
=1,
答:2个
2
3 的积比
1
3 多1;
(2)设这个数是x,
5x+3=8x-16,
5x+3+16=8x-16+16,
5x+19-5x=8x-5x,
19=3x,
19÷3=3x÷3,
x=6
1
3 ,
答:这个数是6
1
3 .
(1)2×
2
3 -
1
3 ,
=
4
3 -
1
3 ,
=1,
答:2个
2
3 的积比
1
3 多1;
(2)设这个数是x,
5x+3=8x-16,
5x+3+16=8x-16+16,
5x+19-5x=8x-5x,
19=3x,
19÷3=3x÷3,
x=6
1
3 ,
答:这个数是6
1
3 .