Question

What is 2 and 3/4 - 3 and 1/5

Answer 1

Based in the calculator : -0.45

Answer 2

I can explain how to do this for you for your understanding:
first of all you work out the mixed fraction to an improper fraction:
2 3/4 = 11/4 - this is because you multiply the 4 and the 2 then add on the 3
3 1/5 = 16/5
next, you find the lowest common denominator, this would be 20, as 4 and 5 both go into 20
and what we do to the denominator we do to the numerator, so to get to 20 from 4 we multiply by 5, so now we do 11X4 which is 44
we then do 16X5 which is 80
so now we have:
44/20 and 80/20
we now subtract 44 from 80 which gives us 36
so now we have:
36/20
then we turn this BACK into a mixed fraction which would be:
1 and 16/20

hope this helped!