5分之1√0.25+2分之1√2又9分之7

问题描述:

5分之1√0.25+2分之1√2又9分之7

5分之1√0.25+2分之1√2又9分之7
=1/5×0.5+1/2×√(25/9)
=0.1+1/2×5/3
=1/10+5/6
=3/30+25/30
=28/30
=14/15 (15分之14)