Question

Math when is the sum of two negative mixed numbers an integer

Answer 1

the short answer is: when their fractions add up to full integers.

For examples, two halves make up a whole, or


`(1)/(2) + (1)/(2)=1`

so the mixed numbers with those will add up to full integers:


`-12(1)/(2) + (-3(1)/(2))=(-(12+3+1)=-16`

but if they don't add up to an interger, the whole sum won't be an integer:



`-12(3)/(4) + (-3(3)/(4))=(-(12+3+1(1)/(2))=-16(1)/(2)`