Worth 25 points asap
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3 - 1 3/5= 1 2/5 or 1.4

first u simplify 1 3/5 which is 8/5

the expression turns into 3 - 8/5

3   8      2
_ - _ = 1 _ 
1    5      5

to answer, u have to find a gcf to find the common denominators.

15/5 - 8/5 = 7/5
7/5 = 1 2/5

or 

u can put them into decimal:

3 - 1.6 = 1.4
1.4 = 1 2/5
  (4/10 simplified is 2/5)

so, the answer is 1 2/5 or 1.4

7.666270253x10 raised to the 18th power