Below are multiple fraction calculators capable of addition, subtraction, multiplication, division, simplification, and conversion between fractions and decimals. Fields above the solid black line represent the numerator, while fields below represent the denominator. = ? Use this calculator if the numerators or denominators are very big integers.

The explicit formula for the geometric sequence 8, 4, 2, 1 is a n = 2 4 − n. This is derived from the first term 8 and a common ratio of 2 1 .

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Image above is representing the conversion process of 8,4,-2,-1 to binary using K-map (Karnaugh map). I have no idea why 0001, 0011, 0010, 1100, 1101, 1110 are marked as 'X'. For 0001, 0011, 0010, they could be expressed as 8,4,-2,-1 as 0111, 0110, 0101.

8 4 2 1 1 0 1 0 也就是说10进制的转换成2进制等于1010，此时或许有人会问，如果这个数大于15(8+4+2+1)咋办？ 很简单，在前面添加个16，如果再大于31，就再在前面加个32

2017年5月25日 · Observe that 8 * (-1/2) = -4, -4* (-1/2) = 2, and 2* (-1/2) = -1 which means we have found a valid common ratio r= -1/2. Note that r is negative since every other value in our sequence switches from a positive to a negative value. To find the next number in your sequence, solve: (-1) * (-1/2) = 1/2. So, the next number in your sequence is 1/2.

2013年5月16日 · 2^n 即2的n次方。

2012年1月31日 · 规律是：每三个数字一组，按公比为q=1/2成递缩等比数列，且每一组的第一个数字正是它的前一组的最后一个数字。 即：8,4,2；2,1,1/2；1/2,（1/4）,（1/8）；1/8，1/16，1/32。 8,4,2；2,1,1/2；1/2,（1/4）,（1/8）；1/8，1/16，1/32。

2022年11月19日 · 84-2-1码算法： 1、84-2-1，2421码既是加权码又是自补码。因为一个码要自补的必要条件是它的所有权重之和必须等于9。 2、84-2-1《8+4-2-1=9》和，2421《2+4+2+1=9》。 3、数字的代码和它的9的补码应该有互补关系《即数字和它的9的补码是互补的》。

To write 8 8 as a fraction with a common denominator, multiply by 2 2 2 2. Combine 8 8 and 2 2 2 2. Combine the numerators over the common denominator. Simplify the numerator. Tap for more steps... The result can be shown in multiple forms.