九分之四乘37.5%+八分之三除以五分之九怎样简算?_数学解答

九分之四乘37.5%+八分之三除以五分之九怎样简算?

人气：338 ℃　时间：2019-08-18 15:58:27

解答

(4/9)*37.5%+(3/8)/(9/5)
=(4/9)*37.5%+(3/8)*(5/9)
=(4/9)*(37.5/100)+5/24
=(1/3)*(12.5/25)+5/24
=(1/3)*0.5+5/24
=1/6+5/24
=4/24+5/24
=9/24