please help me.
2007-07-11 14:22:43 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
3 1/9 = (9*3+1)/9 = 28/9
2 1/4 = (2*4+1)/4 = 9/4
So answer is (28*9)/(9*4) = 28/4 = 7
2007-07-11 14:28:31 · answer #1 · answered by Ohil 3 · 0⤊ 0⤋
3 1/9 Ã 2 1/4
First convert to improper fractions:
3 1/9 = (3Ã9 + 1) / 9 = 28/9
2 1/4 = (2Ã4 + 1) / 4 = 9/4
So we have
28 / 9 Ã 9 / 4
We can cancel out the 9s, and also a common factor of 4 between the 4 and the 28 to get
7 / 1 Ã 1 / 1
= 7.
2007-07-11 21:29:53 · answer #2 · answered by Scarlet Manuka 7 · 0⤊ 0⤋
3 1/9 = (3*9 + 1)/9 = 28/9
2 1/4 = (2*4 + 1)/4 = 9/4
28/9 * 9/4 = 7
2007-07-11 21:28:35 · answer #3 · answered by Lain Lain 3 · 0⤊ 0⤋
Before you can multiply these mixed numbers you will want to change them into top heavy fractions.
3 and 1/9 is 28/9.
2 and 1/4 is 9/4.
So you now have (28/9) times (9/4).
To complete you multiply the numerator times the numerator and then the denominator times the denominator. You can reduce and your answer will be 7.
2007-07-11 21:27:55 · answer #4 · answered by Bedford 2 · 0⤊ 0⤋
7
2007-07-11 21:26:14 · answer #5 · answered by nightowl 2 · 0⤊ 0⤋
With mixed fractions (integer with proper fraction), it's easiest (for me) to convert them into improper fractions (where numerator is larger than denominator).
3 1/9 = 28/9
2 1/4 = 9/4
Now, multiply (28/9) and (9/4)
(252/36)
reducing gives
7/1
or simply
7.
2007-07-11 21:29:34 · answer #6 · answered by Tony The Dad 3 · 0⤊ 0⤋