How do you subtract #6\frac { 2} { 5} - 1\frac { 3} { 10}#?

1 Answer

#51/10=5 1/10#

Explanation:

Let's first start by converting these out of mixed numbers:

#6 2/5 - 1 3/10#

#32/5-13/10#

We need the denominators to be equal, so I'm going to work with the left hand fraction:

#32/5(1)-13/10#

#32/5(2/2)-13/10#

#64/10-13/10#

#51/10#

51 is prime so we can't reduce it, meaning this is our final answer. We can, however, convert back to a mixed number (since that is what we started with):

#51/10=(50+1)/10=50/10+1/10=5 1/10#