Answer:
d+12/3
Explanation:
*= multiply /= fraction ALL OVER= fraction over fraction
find the common denominator-
d/3+4
d/3+3*4/3
combine fractions with the common denominator
d/3+3*4/3 ALL OVER d+3*4/3
multiply
d+3*4/3 ALL OVER d+12/3
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