What is 7 tenths minus 3 fifths?

To subtract 3 fifths from 7 tenths, first convert both fractions to a common denominator. The least common denominator of 10 and 5 is 10. Convert 3 fifths to tenths, which gives us 6 tenths. Now, subtract: 7 tenths - 6 tenths equals 1 tenth. Therefore, 7 tenths minus 3 fifths is 1 tenth.