2015年9月10日 · 12 -: 1/3 = 12 * 3/1 = 36 In general, you can divide by a rational expression by multiplying by the same expression with numerator and denominator swapped.

2017年8月4日 · Which method do you use to factor #3x(x-1)+4(x-1) #? What are the factors of #12x^3+12x^2+3x#? How do you find the two numbers by using the factoring method, if one number is seven more than...

2018年3月28日 · => x = -24 =>x/12 +1/3 = -5/3 First, we subtract 1/3 from each side: =>x/12 +1/3 - 1/3 = -5/3 - 1/3 => x/12 = -6/3 => x/12 = -2 Now we multiply both sides by 12: =>x ...

2018年3月20日 · 1/4 We want to simplify using common divisors. We know that 3 is prime, so it can only be written as 1*3. We know that 12 is composite, so it can be written as 1 * 2 * 2 * 3.

2016年6月15日 · =7/12 When adding fractions, the denominators have to be the same before you can add the numerators. Find equivalent fractions for both 1/3 and 1/4 The lowest number which 3 and 4 can both divide into is 12 1/3xx4/4 = 4/12 " and " 1/4 xx 3/3 = 3/12 We can write this easier like this: 1/3 +1/4 =(4+3)/12 =7/12 " ONLY add the numerators"

2015年9月10日 · The answer is 1/12 In order to divide (1/3)/4, 1st: you must find the reciprocal of the denominator, which is 1/4 2nd: Then you multiply 1/3 by the reciprocal So (1/3)/4 will now be 1/3 x 1/4 = 1/12

2018年3月13日 · 59 Start with the innermost brackets: 35 + 3 xx (12 - 4) Then the next set of brackets: 35 + 3 xx 8 Then do the multiplication 35 + 24 Finally the addition: 59

2017年1月12日 · The reciprocal of 4 1/3 is 3/13 In general, the reciprocal of an improper fraction a/b is b/a In the case of 4 1/3 we have a mixed fraction. In order to find the reciprocal, we start by converting it into an improper fraction: 4 1/3 = 4+1/3 = (4*3)/3+1/3 = 12/3+1/3 = (12+1)/3 = 13/3 So the reciprocal is 3/13

2017年8月30日 · S_n = (12(1-(-3)^n))/4 The sum to n of a geometric series, denoted as S_n, is given by the formula S_n = (a(1-r^n))/(1-r where a is the first term of the series and r is the common ratio.

2016年3月18日 · this is a geometric first term is a = 4 2nd term is mult by 3 to give us 4( 3^1) 3rd term is 4( 3^2) 4rth term is 4( 3^3) and the 12th term is 4( 3^11) so a is 4 and the common ratio (r) is equal to 3 that's all you need to know. oh, yeah, the formula for the sum of the 12 terms in geometric is S(n)=a((1-r^n)/(1-r)) substituting a=4 and r=3, we get: s(12)=4((1-3^12)/(1-3)) or …