Any multiple of the lcm of 170 and 253 will do as a common denominator.
The lcm(170, 253) = 43010, so the common denominator of 170 and 253 can be any of:
43010, 86020, 129030, 172040, 215050, 258060, 301070, 344080, 387090, 430100, 473110, 516120, 559130, 602140, 645150, 688160, 731170, 774180, 817190, 860200, 903210, 946220, 989230, 1032240, 1075250, 1118260, 1161270, 1204280, 1247290, 1290300, 1333310, 1376320, 1419330, 1462340, 1505350, 1548360, 1591370, 1634380, 1677390, 1720400, 1763410, 1806420, 1849430, 1892440, 1935450, 1978460, 2021470, 2064480, 2107490, 2150500, 2193510, 2236520, 2279530, 2322540, 2365550, 2408560, 2451570, 2494580, 2537590, 2580600, 2623610, 2666620, 2709630, 2752640, 2795650, 2838660, 2881670, 2924680, 2967690, 3010700, 3053710, 3096720, 3139730, 3182740, 3225750, 3268760, 3311770, 3354780, 3397790, 3440800, 3483810, 3526820, 3569830, 3612840, 3655850, 3698860, 3741870, 3784880, 3827890, 3870900, 3913910, 3956920, 3999930, 4042940, 4085950, 4128960, 4171970, 4214980, 4257990, 4301000, ...
4/17 can be written 40/170, and 3/10 can be written as 51/170. When written that way they have (least) common denominator 170.
A few synonyms for common denominator are , common divisor, common measure, denominator, numerator
A common denominator of 20 and 30 is 600. This is NOT the least common denominator, though.
The greatest common denominator is infinite. The least common denominator is 45.
A common denominator, though not the least, is 80.
4/17 can be written 40/170, and 3/10 can be written as 51/170. When written that way they have (least) common denominator 170.
This cannot be answered properly because at least two numbers are required.
A common denominator is 7.A common denominator is 7.A common denominator is 7.A common denominator is 7.
The common denominator of any two or more whole numbers, such as 10 and 17, will always be one (1) because 'common denominator' refers to the denominators of two or more fractions or mixed numbers, not whole numbers. So, a set of whole numbers (x,x) would have to be converted to their fraction equivalents, i.e., x/1, which will always yield a denominator of 1.
That's the least common denominator or LCD.
The least common denominator.
A few synonyms for common denominator are , common divisor, common measure, denominator, numerator
A common denominator of 20 and 30 is 600. This is NOT the least common denominator, though.
The greatest common denominator is infinite. The least common denominator is 45.
A common denominator, though not the least, is 80.
There can be no greatest common denominator. For supose x is the greatest common denominator. ie 24 divides x and 36 divides x. Then 2x is a common denominator and 2x > x so 2x is a greater common denominator than the greatest common denominator. That contradiction implies that there is no greatest common denominator.
You Ned to find a larger common denominator or multiply the denominators to gain a common denominator.