2006-12-25 05:12:34 · 8 answers · asked by dopepink 1 in Science & Mathematics ➔ Mathematics
21 4/5
={(21*5)+4}/5
=(105+4)/5
=109/5 is an improper fraction of the mixed number21 4/5 .
2006-12-25 05:21:33 · answer #1 · answered by Anonymous · 2⤊ 1⤋
21 and 4/5 expressed as an improper fraction
21 expressed in fifths is 21 x 5/5 ,
(expressed in sixths 21 would be 21 x 6/6)
21 x 5/5 = 105/5
but the numeral to be expressed is 21 AND 4/5
therefore 4/5 is added to 105/5 which gives 109/5 as the expression required.
I hope this helps you ....
2006-12-25 13:29:33 · answer #2 · answered by Gaz 5 · 0⤊ 1⤋
21 4/5=105/5+4/5=109/5
2006-12-25 13:31:00 · answer #3 · answered by mu_do_in 3 · 0⤊ 1⤋
21 4/5=109/5
2006-12-25 13:50:30 · answer #4 · answered by eissa 3 · 0⤊ 1⤋
21 4/5
= (5 * 21) + 4
= 105 + 4
= 109/5 [ans.]
2006-12-25 22:06:15 · answer #5 · answered by Akshay 2 · 0⤊ 1⤋
The way to do that is (21*5+4)/5 = 109/5.
In general, a b/c is (a*c+b)/c
2006-12-25 13:19:03 · answer #6 · answered by mulla sadra 3 · 0⤊ 2⤋
21 4/5 = ((21 * 5) + 4)/5
= (105 + 4) / 5
= 109 / 5.
2006-12-25 13:16:01 · answer #7 · answered by Crazy Malamute 3 · 0⤊ 2⤋
21 4/5
Multiply 21 by 5/5 = 105/5
Then add it to 4/5 = 109/5
2006-12-25 13:15:41 · answer #8 · answered by Steve A 7 · 0⤊ 2⤋