the common multiple of 9 15 30 is 90
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The Least Common Multiple (LCM) for 9 6 15 is 90.
The Least Common Multiple (LCM) for 9 15 is 45.
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.
45
The answer is 10.