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2 1/3 + 1 6/7 first needs to be converted to the least common factor of the denominator, so the least common factor of 3 and 7 is 21. then you would multiply the top and the bottom by the number that multiplies with the denominator to get 21. The number to multiply to 3 would be multiplied by 7 to get 21 and vise versa, so for 2 1/3, 1 x 7 = 7 and 3 x 7 = 21 which makes 2 7/21. For 1 6/7, 6 x 3 = 18 and 7 x 3 = 21 which makes 1 18/21. 2 7/21 + 1 18/21 = 4 4/21 or, in improper form, 88/21
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What is two sevenths plus four sevenths?
6/7, six sevenths
What is two and two sevenths plus six and five sixths?
two and two sevenths plus six and five sixths is 52.
What is six sevenths minus one third equal?
11/21 (eleven over twenty-one)
What is eight tenths plus six sevenths?
1 46/70
What is negative one third times negative six sevenths?
-1/3 x -6/7 = 1 x 6 = 6 divided by 3 x 7= 21 or 6/21 divide both sides by 3 to reduce it = 2/7 and the sign is positive (SINCE TWO NEGATIVES multiplied = a positive) which kind of makes sense, right, if have 6 of these sevenths, and you want to have one third of them that means 6/2 = 3 or 3 sevenths is a third of six sevenths...
