Saturn is 9.1 * 10^8 miles from the sun, and earth is 9.3 * 10^7 miles from the sun. From this, we can see that Saturn is much farther from the sun than the earth.
To find the distance of one planet closer to the sun than the other planet, we can subtract 9.3 * 10^7 from 9.1 * 10^8.
Original expression: 9.1 * 10^8 - 9.3 * 10^7
Convert both sides to 10^7: 91 * 10^7 - 9.3 * 10^7
