-5-[-4+(1-0.25*4/3#1/3)#(-0.75)]
|-0.75|+(+3又1/4)-(-0.125)-|-0.25|+(+5/8)
1/4×0.75+0.25×3/8+25%×1/8
4:3/5,2:2/5,7:3/7,4:7/4,0.25:1/2,0.75:3/4,0.125:1/8,2:1/7,5/
/-0.75/+(+3又4分之1)-(-1.125)-/-0.25/+1又8分之5
[(0.75+1分之5)除以0.25-3又5分之4]乘1999又25分之24
3/4*1/5+3/4*2/5+0.75*3/5-3/4简便运算
3/4×1/5+3/4×2/5+0.75×3/5-3/4
4/3*5/1+4/3*5/2+0.75*5/3-4/3简便计算
4/1乘0.75-0.25乘3/8+25%乘1/8简便计算,
1.计算 1又3/4-0.25 .0.125*2/3 .0.063*1/9.1又4/8-0.75.
计算:|-0.25|+(-3又4/1)-(-0.75)+|-0.125|+8/7
简便运算:1/3*4.5/(0.75+5/4)