26 + 13
1 and -1 if you add them. 1 and 1 if you subtract them.
23
Make the fractions equivalent then subtract
The same as with positive ones. Make sure they have the same denominator and add or subtract their numerators.
wich one
Add heat.
does how many mean add or subtract
To add to the current selection, hold down SHIFT and make the selection.. To subtract from the current selection, hold down ALT and make the selection..
The opposite of add is subtract.
it means to subtract
Neither. Factorise and then multiply a subset of factors.
You add or subtract only the numerators