Simplify the following fraction by a factor of 7:
2870= \frac{28}{70}= 7028=
We will reduce in the following way, divide the numerator by 7 and the denominator by 7:
28:770:7=410 \frac{28:7}{70:7}=\frac{4}{10} 70:728:7=104
410 \frac{4}{10} 104