讨论:初中数学/算则练习/分数四则

练习题答案

1. ${\frac {8}{9}}$
2. $-{\frac {7}{40}}$
3. ${\frac {17}{56}}$
4. $-{\frac {38}{25}}$
5. ${\frac {91}{24}}$
6. $-{\frac {7}{24}}$
7. ${\frac {2}{7}}$
8. $-{\frac {27}{13}}$
9. $-{\frac {1}{6}}$
10. ${\frac {24}{13}}$