五年级数学下册分数加减简便运算

五年级数学下册分数加减简便运算

  • 简介

    5/6+1/12+7/12 =5/6+(1/12+7/12) =5/6+8/12 =3/2 1/3+2/7+1/5+2/3 =2/7+1/5+(1/3+2/3) =10/35+7/35+1 =1又17/35 2/5+1/3+3/5 =1/3+(2/5+3/5) =1/3+1 =1又1/3 1/4+1/3+1/4+1/4 =1/3+(1/4+1/4+1/4) =1/3+3/4 =4/12+9/12 =13/12

五年级数学下册分数加减简便运算