Because 14 goes into 21 1 and 1/2 times.
21/ 14= 1 + 7/14 = 1 +1/2
14/21 + 1/7 = 17/21
Well 21 is larger than 14 so it is an improper fraction. Take 14 from 21 and you are left with 7 thus 21/14 is the fame as 1 and 7 over 14. however 14 is twice 7 so you can divide the fraction by 7 to get 1 over 2 So 21/14 = 1 and 7/14 = 1 and 1/2 Thus 21 of 14 simplified is - One and a half
5/14 * 21/35 = 5/14 * 3/5 = 1/14 * 3/1 = 3/14
-21/14 + -1/14 = -22/14 or -1 and 4/7
No.
Yes
17/21
1 over 21. 5/7 - 2/3 = 15/21 - 14/21 = 1/21
When you make the fraction: 21 over 1 it is equal to the whole # 21
14 x 1/6 = 21/3
m/14 = 3/21 m/14 = 1/7 m/14 = 2/14 m = 2