( +245)/(+256)=0.98 可以的带上运算过程

5.88 化同底就很简单了

设( Y +245)/(X+256)=0.98
Y+245=0.98X+250.88
Y-0.98X=5.88 ?

(x+245)/(x+246)=0.98
x=294

设( x +245)/(x+256)=0.98
x+245=0.98x+256*0.98
0.02x=5.88
x=294
所以( 294 +245)/(294+256)=0.98

题目是(x+245)/(x+256)=0.98吗
如上,移向,(x+245)=0.98*(x+256)
展开,x+245=0.98x+0.98*256
移向合并,0.02x=0.98*256-245
解得,x=294

0.98x300=294
294-256=38
294-245=49
所以 (49+245)/(38+256)=0.98