Find unknown 2

Find unknown denominator: 2/3 -5/? = 1/4

Correct answer:

d =  12

Step-by-step explanation:

23−5d=14  23⋅ 12d−5d⋅ 12d=14⋅ 12d  4⋅ 2⋅ d−5⋅ 12=1⋅ 3⋅ d  5d=60  d=12   Verifying Solution:   r=23−5d=23−512=14=0.25

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