甲數(shù)和乙數(shù)的比是3:4,乙數(shù)和丙數(shù)的比是8:11,甲數(shù)和丙數(shù)的比是______:______如果甲數(shù)數(shù)66,那么丙數(shù)是______.
因?yàn)榧讛?shù)和乙數(shù)的比是:(3×2):(4×2)=6:8,
乙數(shù)和丙數(shù)的比是8:11,
所以甲數(shù)和丙數(shù)的比是:6:11;
即甲數(shù)是丙數(shù)的
,所以丙數(shù)是:66
÷=121;
故答案為:6,11;121.