well, if it is a negative plus a positive, it would be much like subtracting backwards, like this:
-4+7=3 or -11+7=-4
also, if it is a positive plus a negative, you subtract
4+(-7)=-3 or 11+(-7)=4
what's 8+15=
no, to add and subtract like and unlike fractions the denominator has to be the same,
Yes. A negative subtracted by a negative is a positive. Just remember that two like signs become a positive sign, and two unlike signs become a negative sign.
54453
first find a common denominator then subtract the top numbers
what's 8+15=
Subtract and the Keep the sign of the one that has more
no, to add and subtract like and unlike fractions the denominator has to be the same,
Yes. A negative subtracted by a negative is a positive. Just remember that two like signs become a positive sign, and two unlike signs become a negative sign.
No. You can't subtract unlike terms
54453
get them to have the same demoninator. like if you have 5/6-3/4 make it 10/12-9/12. then just subtract.
you just subtract normally and keep the same sign 4-2=2 (-4)-(-2)=(-2)
because its just one of the rules of math :)
first find a common denominator then subtract the top numbers
If the number has a + sign then you add it, if it has a - sign, then you subtract it.
You would have to convert the units to be alike, then you would be able to add and subtract them.