同分母分数加减法口算练习题20

同分母分数加减法口算练习题20本题共包含20个同分母分数加减法口算练习题，适用于小学生练习口算技能，加深对同分母分数概念的理解。题目1.$2\frac{1}{4}+\frac{3}{4}=$2.$\frac{7}{8}+1\frac{1}{8}=$3.$3\frac{3}{7}+\frac{4}{7}=$4.$\frac{1}{6}+2\frac{1}{3}=$5.$1\frac{2}{5}+2\frac{3}{5}=$6.$2\frac{1}{2}+\frac{1}{2}=$7.$\frac{3}{7}+2\frac{1}{7}=$8.$4+\frac{1}{3}=$9.$5\frac{5}{6}-\frac{1}{6}=$10.$\frac{7}{8}+\frac{1}{4}=$11.$2\frac{3}{4}+\frac{1}{4}=$12.$\frac{5}{6}+1\frac{1}{3}=$13.$6\frac{2}{3}-2\frac{1}{3}=$14.$\frac{1}{5}+3\frac{2}{5}=$15.$4\frac{3}{4}-\frac{1}{4}=$16.$7\frac{1}{2}-\frac{1}{2}=$17.$\frac{1}{6}+1\frac{1}{6}=$18.$3\frac{1}{5}-\frac{2}{5}=$19.$\frac{11}{12}+1\frac{1}{6}=$20.$2\frac{1}{2}-1=$答案1.$2\frac{1}{4}+\frac{3}{4}=3$2.$\frac{7}{8}+1\frac{1}{8}=1\frac{1}{4}$3.$3\frac{3}{7}+\frac{4}{7}=4\frac{1}{7}$4.$\frac{1}{6}+2\frac{1}{3}=2\frac{1}{2}$5.$1\frac{2}{5}+2\frac{3}{5}=4$6.$2\frac{1}{2}+\frac{1}{2}=3$7.$\frac{3}{7}+2\frac{1}{7}=3$8.$4+\frac{1}{3}=4\frac{1}{3}$9.$5\frac{5}{6}-\frac{1}{6}=5\frac{2}{3}$10.$\frac{7}{8}+\frac{1}{4}=1\frac{1}{8}$11.$2\frac{3}{4}+\frac{1}{4}=3$12.$\frac{5}{6}+1\frac{1}{3}=2\frac{1}{6}$13.$6\frac{2}{3}-2\frac{1}{3}=4\frac{1}{3}$14.$\frac{1}{5}+3\frac{2}{5}=4$15.$4\frac{3}{4}-\frac{1}{4}=4\frac{1}{2}$16.$7\frac{1}{2}-\frac{1}{2}=7$17.$\frac{1}{6}+1\frac{1}{6}=\frac{1}{3}$18.$3\frac{1}{5}-\frac{2}{5}=3$19.$\frac{11}{12}+1\frac{1}{6}=2\frac{1}{3}$20.$2\frac{1}{2}-1=1\frac{