Arrange the following fractions in order of magnitude:

$$
t_{1}=\frac{100^{100}+1}{100^{90}+1}, \quad t_{2}=\frac{100^{99}+1}{100^{89}+1}, \quad t_{3}=\frac{100^{101}+1}{100^{91}+1}, t_{4}=\frac{101^{101}+1}{101^{91}+1}, \quad t_{5}=\frac{101^{100}+1}{101^{90}+1}, \quad t_{6}=\frac{99^{99}+1}{99^{89}+1}, \quad t_{7}=\frac{99^{100}+1}{99^{90}+1}
$$