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電子課本網(wǎng) › 第49頁

第49頁

信息發(fā)布者：
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??$\frac {7}{8}=\frac {7}{8}$??
??$\frac {3}{4}=\frac {6}{8}$??
??$\frac {7}{8}＞\frac {3}{4}$??
??$\frac {5}{6}=\frac {15}{18}$??
??$\frac {7}{9}=\frac {14}{18}$??
??$\frac {5}{6}＞\frac {7}{9}$??
??$\frac {11}{5}=\frac {77}{35}$??
??$\frac {15}{7}=\frac {75}{35}$??
??$\frac {11}{5}＞\frac {15}{7}$??
??$\frac {9}{10}=\frac {27}{30}$??
??$\frac {9}{10}＞\frac {23}{30}$??
??$\frac {5}{8}=\frac {35}{56}$??
??$\frac {6}{7}=\frac {48}{56}$??
??$\frac {5}{8}＜\frac {6}{7}$??
??$\frac {3}{10}=\frac {6}{20}$??
??$\frac {1}{4}=\frac {5}{20}$??
??$\frac {3}{10}＞\frac {1}{4}$??
??$3÷8=\frac {3}{8}=\frac {9}{24}$??
??$5÷6=\frac {5}{6}=\frac {20}{24}$??
??$\frac {3}{8}＜\frac {5}{6}$?

?
??$9÷4=\frac {9}{4}=\frac {45}{20}$??
??$11÷5=\frac {11}{5}=\frac {44}{20}$??
??$\frac {9}{4}＞\frac {11}{5}$??
??$3÷5=\frac {3}{5}=\frac {27}{45}$??
??$4÷9=\frac {4}{9}=\frac {20}{45}$??
??$\frac {3}{5}＞\frac {4}{9}$?

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??$9÷10=\frac {9}{10}=\frac {54}{60}$??
??$11÷12=\frac {11}{12}=\frac {55}{60}$??
??$\frac {11}{12}＞\frac {9}{10}$??
??$30÷18= \frac {5}{3}($??分)
??$18÷12= \frac {3}{2}($??分)
??$ \frac {5}{3}＞ \frac {3}{2}$??
答：第二組植樹的速度快一些.

??$\frac {1}{6}$??
??$\frac {5}{24}$??
??$\frac {3}{8}$??
??$\frac {5}{12}$??
??$7÷5= \frac {7}{5}($??個)
??$9÷6= \frac {3}{2}($??個)
??$13÷7= \frac {13}{7}($??個)
因為??$ \frac {13}{7}＞ \frac {3}{2}＞ \frac {7}{5}，$??
所以楊師傅的工效最高.

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