9/10=0.9,5/4=1.25,7/8=0.875,7/9=0.78,5/16=0.3125,3/5=0.6
分数化成小数,就是用分子除以分母。9/10=0.95/4=1.257/8=0.8757/9=0.785/16=0.3125
9/10=0.95/4等于1.25,7/8等于0.875,7/9=0.785/16等于0.3125,3/5等于0.6请采纳,谢谢