Question

I'd be really happy someone would help me. Explain how to add unlike fractions. It says to use the largest denominator as the common denominator. 3/4+1/8

Answer 1

Any ideas @anaerrez , since you need ideas to get answers...

Answer 2

Unfortunately no, I've been struggling for day's and i was hoping someone culd explain this as simple as possible.

Answer 3

have you covered least common denominators?

Answer 4

spose we have 2 candy bars, one is broken into 4 pieces, the other into 8 pieces

if we want to evaluate each candy bar on the same basis, they both need to be broken into the same number of parts ... finding a common denominator

Answer 5

@anaerrez are you still there?

Answer 6

can we break the candy bars such that they are each broken into the same nuimber of pieces?

can 4 parts be broken up nicely to make 8 even parts?
can 8 parts be broken up nicely to make 4 even parts?

if not, then can we devise a way to break them evenly until they are in an equal number of parts?

Answer 7

Yes

Answer 8

The first rule you need to use is the multiplication rule for fractions: $$\huge\frac{c}{d}=\frac{bc}{bd}$$

Answer 9

Ok i dont understand. I get that im supposed to rewrite the problem using the largest denominator as the common denominator but where do I go from there.?

Answer 10

$$\huge\frac {3}{4}+\frac{1}{8}=\huge\frac {3*2}{4*2}+\frac{1}{8}$$

Answer 11

$$\huge\frac {6}{8}+\frac{1}{8}=\huge\frac {6+1}{8}$$