分式計算小學(xué)題庫及答案

一、單項選擇題（總共10題，每題2分）1.下列哪個分式是最簡分式？A.\(\frac{6}{9}\)B.\(\frac{3}{4}\)C.\(\frac{12}{16}\)D.\(\frac{5}{10}\)答案：B2.分式\(\frac{8}{12}\)可以約分為：A.\(\frac{2}{3}\)B.\(\frac{4}{6}\)C.\(\frac{1}{2}\)D.\(\frac{3}{4}\)答案：A3.分式\(\frac{5}{10}\)加上\(\frac{3}{10}\)等于：A.\(\frac{8}{20}\)B.\(\frac{8}{10}\)C.\(\frac{1}{2}\)D.\(\frac{4}{5}\)答案：B4.分式\(\frac{7}{14}\)減去\(\frac{3}{14}\)等于：A.\(\frac{4}{14}\)B.\(\frac{1}{2}\)C.\(\frac{4}{7}\)D.\(\frac{1}{7}\)答案：C5.分式\(\frac{3}{4}\)乘以\(\frac{2}{3}\)等于：A.\(\frac{1}{2}\)B.\(\frac{6}{12}\)C.\(\frac{1}{3}\)D.\(\frac{5}{6}\)答案：A6.分式\(\frac{5}{6}\)除以\(\frac{2}{3}\)等于：A.\(\frac{5}{4}\)B.\(\frac{10}{9}\)C.\(\frac{3}{4}\)D.\(\frac{5}{2}\)答案：C7.分式\(\frac{9}{12}\)加上\(\frac{3}{4}\)等于：A.\(\frac{3}{2}\)B.\(\frac{15}{12}\)C.\(\frac{3}{4}\)D.\(\frac{1}{2}\)答案：A8.分式\(\frac{7}{8}\)減去\(\frac{1}{4}\)等于：A.\(\frac{5}{8}\)B.\(\frac{3}{4}\)C.\(\frac{6}{8}\)D.\(\frac{1}{2}\)答案：A9.分式\(\frac{4}{5}\)乘以\(\frac{3}{4}\)等于：A.\(\frac{3}{5}\)B.\(\frac{12}{20}\)C.\(\frac{1}{2}\)D.\(\frac{7}{10}\)答案：A10.分式\(\frac{6}{7}\)除以\(\frac{3}{4}\)等于：A.\(\frac{8}{7}\)B.\(\frac{24}{21}\)C.\(\frac{4}{7}\)D.\(\frac{8}{3}\)答案：C二、多項選擇題（總共10題，每題2分）1.下列哪些分式可以約分為\(\frac{1}{2}\)？A.\(\frac{2}{4}\)B.\(\frac{6}{12}\)C.\(\frac{8}{16}\)D.\(\frac{10}{20}\)答案：A,B,C,D2.下列哪些分式是最簡分式？A.\(\frac{3}{5}\)B.\(\frac{6}{9}\)C.\(\frac{7}{8}\)D.\(\frac{10}{15}\)答案：A,C3.分式\(\frac{5}{6}\)加上\(\frac{1}{3}\)等于：A.\(\frac{7}{6}\)B.\(\frac{4}{6}\)C.\(\frac{2}{3}\)D.\(\frac{1}{2}\)答案：A,C4.分式\(\frac{7}{8}\)減去\(\frac{1}{4}\)等于：A.\(\frac{5}{8}\)B.\(\frac{3}{4}\)C.\(\frac{6}{8}\)D.\(\frac{1}{2}\)答案：A,B5.分式\(\frac{4}{5}\)乘以\(\frac{3}{4}\)等于：A.\(\frac{3}{5}\)B.\(\frac{12}{20}\)C.\(\frac{1}{2}\)D.\(\frac{7}{10}\)答案：A,B,C6.分式\(\frac{6}{7}\)除以\(\frac{3}{4}\)等于：A.\(\frac{8}{7}\)B.\(\frac{24}{21}\)C.\(\frac{4}{7}\)D.\(\frac{8}{3}\)答案：A,B,C7.分式\(\frac{9}{12}\)加上\(\frac{3}{4}\)等于：A.\(\frac{3}{2}\)B.\(\frac{15}{12}\)C.\(\frac{3}{4}\)D.\(\frac{1}{2}\)答案：A,B8.分式\(\frac{7}{8}\)減去\(\frac{1}{4}\)等于：A.\(\frac{5}{8}\)B.\(\frac{3}{4}\)C.\(\frac{6}{8}\)D.\(\frac{1}{2}\)答案：A,B9.分式\(\frac{4}{5}\)乘以\(\frac{3}{4}\)等于：A.\(\frac{3}{5}\)B.\(\frac{12}{20}\)C.\(\frac{1}{2}\)D.\(\frac{7}{10}\)答案：A,B,C10.分式\(\frac{6}{7}\)除以\(\frac{3}{4}\)等于：A.\(\frac{8}{7}\)B.\(\frac{24}{21}\)C.\(\frac{4}{7}\)D.\(\frac{8}{3}\)答案：A,B,C三、判斷題（總共10題，每題2分）1.分式\(\frac{6}{9}\)可以約分為\(\frac{2}{3}\)。答案：正確2.分式\(\frac{5}{10}\)加上\(\frac{3}{10}\)等于\(\frac{8}{20}\)。答案：錯誤3.分式\(\frac{7}{14}\)減去\(\frac{3}{14}\)等于\(\frac{1}{2}\)。答案：錯誤4.分式\(\frac{3}{4}\)乘以\(\frac{2}{3}\)等于\(\frac{1}{2}\)。答案：正確5.分式\(\frac{5}{6}\)除以\(\frac{2}{3}\)等于\(\frac{5}{2}\)。答案：錯誤6.分式\(\frac{9}{12}\)加上\(\frac{3}{4}\)等于\(\frac{3}{2}\)。答案：正確7.分式\(\frac{7}{8}\)減去\(\frac{1}{4}\)等于\(\frac{5}{8}\)。答案：正確8.分式\(\frac{4}{5}\)乘以\(\frac{3}{4}\)等于\(\frac{7}{10}\)。答案：錯誤9.分式\(\frac{6}{7}\)除以\(\frac{3}{4}\)等于\(\frac{4}{7}\)。答案：正確10.分式\(\frac{5}{6}\)加上\(\frac{1}{3}\)等于\(\frac{4}{6}\)。答案：錯誤四、簡答題（總共4題，每題5分）1.簡述如何將分式\(\frac{8}{12}\)約分為最簡分式。答案：首先找到8和12的最大公約數(shù)是4，然后將分子和分母分別除以4，得到\(\frac{2}{3}\)。2.簡述如何進(jìn)行分式\(\frac{5}{6}\)加上\(\frac{1}{3}\)的計算。答案：首先將\(\frac{1}{3}\)轉(zhuǎn)換為\(\frac{2}{6}\)，然后將兩個分式相加，得到\(\frac{5}{6}+\frac{2}{6}=\frac{7}{6}\)。3.簡述如何進(jìn)行分式\(\frac{7}{8}\)減去\(\frac{1}{4}\)的計算。答案：首先將\(\frac{1}{4}\)轉(zhuǎn)換為\(\frac{2}{8}\)，然后將兩個分式相減，得到\(\frac{7}{8}-\frac{2}{8}=\frac{5}{8}\)。4.簡述如何進(jìn)行分式\(\frac{4}{5}\)乘以\(\frac{3}{4}\)的計算。答案：將兩個分式的分子相乘得到12，分母相乘得到20，得到\(\frac{12}{20}\)，然后約分為\(\frac{3}{5}\)。五、討論題（總共4題，每題5分）1.討論分式約分的重要性。答案：分式約分可以簡化計算，使分式更加簡潔，便于理解和比較。約分還可以避免計算錯誤，提高計算的準(zhǔn)確性。2.討論分式加減乘除的計算方法。答案：分式加減需要先找到公分母，然后將分子相加減，分母保持不變。分