5/9+m/n=(5n+9m)/9n
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Sheheidbdbejejdbdbdjdirnfbjddudu
1)999 - 100 = 899 (трёхзначных чисел)2)899*3= 269734800:10=34804900:100=49540-10=530
<span>12+8+97=117
</span><span>12+3+97=112
==============
</span><span>26+14+83=123
</span><span>26+7+83=116</span>