Respuesta :

Answer: 1/5

Step-by-step explanation:

because the denominators are equal we can just solve for the numirator

9 - 7 = 2

then put the numerrator over the denomenator

2 / 10

simplify by dividing both numerator and denominator by a common factor (in this case its 2)

9/10 - 7/10 = 2/10