What number should be subtracted from -2/3 to get -1/6?
For subtracting unlike fractions, take the LCM of the denominators and convert the fractions to equivalent fractions and subtract them as like fractions.
Answer: -1/2 should be subtracted from -2/3 to get -1/6.
Let's find that number.
Let the number which is to be subtracted be x
According to the question,
-2/3 - x = -1/6
x = -2/3 + 1/6 (By transposing terms)
x = (-4 + 1) / 6 (By taking LCM of the denominators)
x = -3/6 or -1/2