yes when you do long division 3 goes into 5 once remaining 2 so 3 into 21 is 7 17 is your answer also a calculator helps also :)
12. you're doing multiples of 3 and the tens and ones places are just reversed in the writing- 3 6 9 12 15 18 21=3 6 9 21 51 81 12
17x-3 = 14
1, 3, 7, 17, 21, 51, 119, 357
Assuming the numbers are 51/4 and 22/7: (51/4) / 22/7) = (21/4) / 16/7) = (21/4) * (7/16) = (21*7) / (4*16) = 147/64
21 - 1, 3, 7, 21 51 - 1, 3, 17 ,51 the GCF is 3
The GCF of 21 and 51 is 3. Both these numbers have only one prime factorization. 21=3*7 51=3*17 So the greatest common divisor is 3.
The factors of 21 are: 1, 3, 7, 21 The factors of 51 are: 1, 3, 17, 51
The common factors of 21 and 51 are: 1 and 3
Latitude: 48°51′24″NLongitude: 2°21′3″E
For 21: 3,7 For 51: 3,17
The GCF is 3.
These are the times of the beginning of the summer of 2014 in the time zones used in the 50 states and 5 organized territories: Friday 20 June at 11:51 PM SST Saturday 21 June at 12:51 AM HAST Saturday 21 June at 1:51 AM HADT Saturday 21 June at 2:51 AM AKDT Saturday 21 June at 2:51 AM MeST Saturday 21 June at 3:51 AM PDT Saturday 21 June at 3:51 AM MST Saturday 21 June at 4:51 AM MDT Saturday 21 June at 5:51 AM CDT Saturday 21 June at 6:51 AM EDT Saturday 21 June at 6:51 AM AST Saturday 21 June at 8:51 PM ChST
Factors of 51: 1, 3, 17, 51Factors of 21: 1, 3, 7, 21GCF (51, 21) = 3
21/8 + 33/8 = 11/2 or 51/2
3 = 3 x 1 6 = 3 x 2 21 = 3 x 7 51 = 3 x 17 '3' is a common factor throughout. Hence 3 x 1 x 2 x 7 x 17 = 714 Is the LCM
GCF of 21 and 51 is 3.21=3*751=3*17