小学分数计算题50道(共1页).doc

精选优质文档-倾情为你奉上小学分数计算题50道45 2/3 + 1/3 15= 7/19 + 12/19 5-6= 1/4 + 3/4 2/3= 8/7 21/16 + 1/2 = 3/7 49/9 - 4/3= 101 1/5 1/5 21= 8/9 15/36 + 1/27= 12 5/6 2/9 3= 8 5/4 + 1/4= 6 3/8 3/8 6= 4/7 5/9 + 3/7 5/9 = 2/5 （ 3/2 + 4/5 ）= 7/8 （ 1/8 + 1/9 ）= 9 5/6 + 5/6 = 3/4 8/9 - 1/3 =4/5 25/16 + 2/3 3/4= 14 8/7 5/6 12/15= 17/32 3/4 9/24= 3 2/9 +