Nathan B. answered • 02/10/16

Tutor

5
(20)
Elementary and Algebraic skilled

^{1}/

_{4}+

^{2}/

_{5}= []

what we need is to have a common denominator. The lowest of them is 20 (4 * 5).

^{1}/

_{4}*

^{5}/

_{5}=

^{5}/

_{20}

^{2}/

_{5}*

^{4}/

_{4}=

^{8}/

_{20}

We use 5/5 and 4/4 in our multiplication because they each equal 1. Now that the denominators are the same, we can add them together:

^{5}/

_{20}+

^{8}/

_{20}=

^{13}/

_{20}

Since 13 and 20 have no common factors,

^{13}/_{20}pounds is our final answer.