1 and 2/5
-20
13/32
7.75
7+2+5= 14 35 42
Answer: x = 8/7
the answer to that is 5
(5/6) + (4/6) = 9/6 = 1 and 1/2
true
Commutative
It's hard to tell what formula you mean from your description, but I think you mean 4 times 3 divided by 4 plus 10 times 5 over 12. Normally multiplication and division is performed before addition so this equals (4 * 3 / 4) + (10 * 5 / 12) 4 times 3 divided by 4 equals 12 divided by 4 equals 3 and on the other side of the plus 10 times 5 divided by 12 equals 50 divided by 12 50 doesn't go exactly into 12 but we can make it equal 25 over 6 to add the results we need to evaluate 3 plus (25 over 6) to do this, we have to use a lowest common denominator, in this case 6 3 plus (25 over 6) equals 3 * 6 over 6 plus (25 over 6) equals (18 over 6) plus (25 over 6) equals (18 + 25) over 6 43 over 6 43 over 6 is a vulgar fraction, so we extract as many whole numbers as possible 43 over 6 equals 42 over 6 plus 1 over 6 equals: 7 plus 1 over 6 7 1/6
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