Answer:
They are asking you to subtrack 9/10 from 1 2/5.
You can achieve this by finding a common denominator for these 2 fractions and then subtracting it.
So, we know that the common denominator is 10 because 5*2=10.
We then change the fraction to 1 4/10.
Then you subtract 9/10 from 1 4/10
1 4/10 can be rewritten as 14/10.
14/10 - 9/10 = 5/10 = 1/2
Step-by-step explanation:
