Thread: Solve these math problems

This is a quiz
1. 2/3+5/7
2. 3/4+7/12
3. 4/9-1/8

SHOW YOUR WORK!

hey i know this but i'm testing people

This is a joke right?

1. 2/3 + 5/7
14/21 + 15/21
29/21

2. 3/4 + 7/12
9/12 + 7/12
16/12
4/3

3. 4/9 - 1/8
32/72 - 9/72
23/72


Thank you calculators?

Originally Posted by Mort

This is a quiz
1. 2/3+5/7
2. 3/4+7/12
3. 4/9-1/8

SHOW YOUR WORK!

Just find the lCD and then add the numerators or subtract for the last one.

Or copy what Blah wrote.

blah 64 1. and 2. are wrong
You forgot to change the improper fraction into a mixed fraction

Originally Posted by Mort

blah 64 1. and 2. are wrong
You forgot to change the improper fraction into a mixed fraction

That is never necessary unless asked. It is much easier to leave it mixed for calculations later on.

1. False
2. C
3. None of the above.

Originally Posted by Pineapple!

1. False
2. C
3. None of the above.

Wrong