I want to make myself a math portofolio (as a quick reference) and I have a part where I have to 'amplify' a fraction like here:
But I don't know how can I do this thing, can you help me? Thank you.
Edit: The "4)" in the upper left-hand corner means "amplify", the process of expanding both numerator and denominator by explicitly stating the value indicated as a multiplication factor. Similarly, a "(4" in the upper right-hand corner means "simplify", or merge the separate values in the numerator and denominator to a single value.