Question

初一数学代数式

m是自然数，求使7m/m-3是整数的m的值。
要有详细过程

Answer 1

7m/(m-3)=[7(m-3)+21]/(m-3)=7+21/(m-3)
∴m-3是21的约数
∴m=2,4,6,0,10,24

Answer 2

7m/(m-3)=[7(m-3)+21]/(m-3)=7+21/(m-3)
∴m-3是21的约数
∴m=2,4,6,0,10,24
正确