144/169的算術(shù)平方根=12/13;
(2又7/9 -256/625)的絕對(duì)值
=(2+7/9 -256/625)的絕對(duì)值
=2+7/9-256/625,[2+7/9>256/625]
=2+7*625/(9*625)-259*9/(625*9)
=2+13294/5625
=2+2044/5625
=2又2044/5625??????????????????????(2又7/9 -256/625的絕對(duì)值)的算術(shù)平方根?=13321/5625 的算術(shù)平方根=(13321)/(3*3*25*25)的算術(shù)平方根=[√(13321)]/75共3道題目？求下列各數(shù)的算術(shù)平方根：144/169；2又7/9；（ -256/625）的絕對(duì)值？144/169的算術(shù)平方根=(12*12)/(13*13)的算術(shù)平方根=12/13；2又7/9的算術(shù)平方根=25/9的算術(shù)平方根=(5*5)/(3*3)的算術(shù)平方根=5/3;（ -256/625）的絕對(duì)值的算術(shù)平方根=(256/625)的算術(shù)平方根=(16*16)/(25*25)的算術(shù)平方根=16/25