rút gọn rồi quy đồng các phân số sau đây:
a) \(\frac{7.12^3+2.12^3}{4^6.3^{11}};\frac{-17.10+17.6}{18.11+18.6};\frac{6.7.8.10}{9.12.14.15}\)
b) \(\frac{4.3^9+8.\left(-3\right)^7}{\left(-3\right)^{10}+20.\left(-3\right)^7};\frac{5^6.8-5^7}{5^8-7.5^6};\frac{-1997.1996+1}{-1995.\left(-1997\right)+1996}\)
rút gọn phân số:
\(\frac{-1997.1996+1}{\left(-1995\right).\left(-1997\right)+1996}\)
rút gọn các phân số sau
a) :\(\frac{\left(-5\right)^3.40.4^3}{135.\left(-2\right)^{14}.\left(-100\right)^0}\)
b) \(\frac{-1997.1996+1}{\left(-1995\right).\left(-1997\right)+1996}\)
Rút gọn các phân số sau
a,\(\frac{6.9-2.17}{63.3-119}\)b,\(\frac{3.13-13.18}{15.40-80}\) c,\(\frac{-1997.1996+1}{\left(-1995\right).\left(-1997\right)+1996}\)
d,\(\frac{3.7.13.37.39-10101}{505050-70707}\)
e,\(\frac{2929-101}{2.1919+404}\)
A=\(\frac{-1997.1996+1}{\left(-1995\right).\left(-1997\right)+1996}\)
Rút gọn A
rút gọn:
a) \(\frac{-1997.1996+1}{\left(-1995\right).\left(-1997\right)+1996}\)b) \(\frac{3.7.13.37.39-10101}{505050-70707}\)c) \(\frac{18.34+\left(-18\right).124}{-36.17+9.\left(-52\right)}\)Rút gọn phân số
1\(\frac{6.9-2.17}{63.3-119}\)
2) \(\frac{2929-101}{2.1919+404}\)
3) \(\frac{-1997.1996+1}{\left(-1995\right).\left(-1997\right)+1996}\)
4) \(\frac{2.3+4.6+14.21}{3.5+6.10+21.35}\)
5) \(\frac{3.7.13.37.39+10101}{505050-707070}\)
Rút gọn phân số
\(y=\frac{\left(-5\right)^3.40.4^3}{135.\left(-2\right)^{14}.1}\) ; \(\frac{2929-101}{2.1919+404}\) ; \(\frac{-1997.1996+1}{-1995.\left(-1997\right)+1996}\)
Rút gọn phân số:
a)\(\frac{2929-101}{2.1919+404}\)
b)\(\frac{-1997.1996+1}{-1995.\left(-1997\right)+1996}\)
c)\(\frac{2.3+4.6+14.21}{3.5+6.10+21.35}\)
d)\(\frac{3.7.13.37.39-10101}{505050-70707}\)
e)\(\frac{18.34+\left(-18\right).124}{-36.17+9.\left(-52\right)}\)