How do you add #\frac { - 7} { 2d } + \frac { 3} { 8d }#?

1 Answer
smendyka
Jul 15, 2017

See a solution process below:

Explanation:

First, we need to put the fractions over a common denominator (in this case #8d#) by multiplying the fraction on the left by the appropriate form of #1#:

#(4/4 xx (-7)/(2d)) + 3/(8d) => (-28)/(8d) + 3/(8d)#

We can now add the numerators over the common denominator:

#(-28)/(8d) + 3/(8d) => (-28 + 3)/(8d) => -25/(8d)#

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