AidanG2003 AidanG2003

07-09-2020
Mathematics

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How can I prove mathematically that (a / b) + (c / d) = (ad + bc) / bd

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MathPhys MathPhys

07-09-2020

Step-by-step explanation:

(a/b) + (c/d)

Find the common denominator. In this case, bd. So multiply the first fraction by d/d, and the second fraction by b/b.

(ad)/(bd) + (bc)/(bd)

Add the fractions.

(ad + bc) / (bd)

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