What is the least common
denominator of 1/2 and 3/7?

provided answers:
a. 2
b.14
c.7
d. 28

explain why!

How do you use the additive inverse to evaluate an expression that uses subtraction in a full sentence

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.