yes because 3 goes into 9 and 21. so 9/21 simplified is 3/7.
21/27 = 7/9 by dividing the numerator and denominator by 3
Neither, Both fractions reduce to 3/7, so they are equal.
No
The mixed number of 21 over 9 is 21/3
Both 21 and 9 can be divided by 3. 21/3=7 9/3=3 So 21 over 9 can be simplified to 7 over 3.
6x - 9 = 21 6x = 21 + 9 6x = 28 x = 28/6 Reduce to: x = 14/3
To 21/50
11/21
No.
No.
3/7 = 9/21 (multiplying both the numerator and denominator by 3), therefore 3 over 7 is equal to 9 over 21.
9/21 = 3/7 = .4286