1) 甲數(shù)是150,乙數(shù)是它的3分之4,求乙數(shù) 150*4/3=200
2、甲數(shù)是150,乙數(shù)比甲數(shù)多3分之2 求乙數(shù) 150*(1+2/3)=250
3、甲數(shù)是150,是乙數(shù)的3分之1,求乙數(shù) 150/(1/3)=450
4、甲數(shù)是150,比乙數(shù)少3分之1,求乙數(shù) 150*(1+1/3)=200
5、甲數(shù)是150,乙數(shù)比甲數(shù)多3分之1,求乙數(shù) 150*(1+1/3)=200
6、甲數(shù)是150,乙數(shù)是80,甲數(shù)比乙數(shù)多幾分之幾 (150-80)/80=7/8
7、甲數(shù)是150,乙數(shù)是80,乙數(shù)比甲數(shù)少幾分之幾 (150-80)/150=7/15