> 数学 >
25/17-1/3x9/8-5/8;1/5x27+3/5x41;1/4x39+3/4x27这几道题的简便算法
人气:111 ℃ 时间:2020-02-05 01:37:19
解答
(25/17)-(1/3)*(9/8)-(5/8)=25/17-[(3/8)+(5/8)]=25/17-1=8/17(1/5)*27+(3/5)*41=(1/5)*27+(3/5)*27+(3/5)*14=27*[(1/5)+(3/5)]+(3/5)*14=27+42/5=177/5(1/4)*39+(3/4)*27=(1/4)*27+(1/4)*12+(3/4)*27=27*[(1/4)+(3/...
推荐
猜你喜欢
© 2025 79432.Com All Rights Reserved.
电脑版|手机版