What is nine tenths minus four fifteenth?

Answer 1

To subtract fractions, we need a common denominator. The least common multiple of 10 and 15 is 30. So, we rewrite 9/10 as 27/30 and 4/15 as 8/30. Subtracting, we get 27/30 - 8/30 = 19/30. Therefore, 9/10 - 4/15 = 19/30.

Answer 2

nineteen thirtieths