2006-11-12 10:23:02 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Turn the mixed fractions into improper fractions:
(21/4)/(7/3)
Flip the 7/3 fraction:
(21/4)*(3/7)
The 21 and 7 cancel out:
(3/4)*(3/1)
The answer:
9/4
2006-11-12 11:18:33 · answer #1 · answered by Anonymous · 5⤊ 0⤋
Step 1: Change each mixed fraction into an improper fraction:
5 1/4 becomes 21/4 and 2 1/3 becomes 7/3.
Step 2: To "divide by" a fraction means to "multiply by the reciprocal (or inverse) of the second term:
21/4 divided by 7/3 is the same as 21/4 times 3/7.
Step 3: Multiply numerator by numerator and denominator by dedonimator:
21*3 / 4*7 = 63/28
Step 4: Simplification of 63/28 (the common factor between the numerator and denominator is 7) = 9/4
Always show your steps. Some teachers give partial credit.
2006-11-12 18:49:42 · answer #2 · answered by Empress Sky 2 · 2⤊ 0⤋
5 1/4 = 21/4 divided by 2 1/3 = 7/3 => 21*3/(4*7) = 9/4
2006-11-12 18:27:13 · answer #3 · answered by fernando_007 6 · 2⤊ 0⤋
convert both to fractions
5 1/4=21/4 and
2 1/3=7/3
so 21/4 divided by 7/3....this can be rewritten as
21/4 times 3/7, which equals
9/4 or 2 1/4
2006-11-12 18:26:51 · answer #4 · answered by kelsey 7 · 2⤊ 0⤋
2 1/2
2006-11-12 18:24:58 · answer #5 · answered by Anonymous · 0⤊ 3⤋
5 1/4 / 2 1/3
21/4 / 7/3
21/4 * 3/7
9/4
2 1/4
2006-11-12 18:26:32 · answer #6 · answered by Anonymous · 3⤊ 0⤋
21/4*3/7
9/4
2006-11-12 18:24:42 · answer #7 · answered by 7 · 3⤊ 0⤋
Or you could just multiply 21/7 by 3/7
2006-11-12 18:25:50 · answer #8 · answered by T Time 6 · 0⤊ 3⤋
15/8
2006-11-12 18:25:08 · answer #9 · answered by brooke 2 · 0⤊ 3⤋
Let me guess, homework due Monday? 10 peeps give an answer instead of explaining how they got it. They give different answers!
2006-11-12 19:27:16 · answer #10 · answered by Kenneth R C 5 · 3⤊ 1⤋