• ← Apart
• → Coefficient

Cancel

WMA link

Cancel[expr]

cancels out common factors in numerators and denominators.

• • Cancel[x / x ^ 2]

Cancel threads over sums:

• • Cancel[x / x ^ 2 + y / y ^ 2]

• • Cancel[f[x] / x + x * f[x] / x ^ 2]

But it does not touch other expressions:

• • a == "A" // Cancel // InputForm