a. 1/4
b. 27/108
c. 1 and 11/25
d. 5
2007-02-26 01:52:50 · 6 answers · asked by Anonymous in Education & Reference ➔ Homework Help
9/15 reduces to 3/5
30/72 reduces to 5/12
3/5 x 5/12
3 x 5 = 15
5x 12 = 60
15/60, divide both top and bottom by 15, and you get 1/4, so the answer is A
2007-02-26 01:59:35 · answer #1 · answered by crzywriter 5 · 0⤊ 0⤋
If you divide both the 9 and the 15 of 9/15 by 3, you'll see that you're actually talking about 3/5.
If you divide both the 30 and the 72 by 6, you'll see that the fraction is 5/12.
Then, if you want to multiply 3/5 by 5/12, you'll see that the 5's cancel each other out, meaning you have 3/12, or 1/4. Neat, huh?
2007-02-26 09:59:49 · answer #2 · answered by Anonymous · 0⤊ 0⤋
9/15*30/72=270/1080=27/108
If you then divide with 27(or with 9 and then with 3) u get 1/4
2007-02-26 12:09:40 · answer #3 · answered by Anonymous · 0⤊ 0⤋
multiplying 9/15x30/72= 2/8=1/4(A)
2007-02-26 09:58:10 · answer #4 · answered by WC 7 · 0⤊ 0⤋
yeap..that's the fastest solution from pathfinder. That's the way you should do maths
2007-02-26 11:14:54 · answer #5 · answered by pieces of me 1 · 0⤊ 0⤋
a
2007-02-26 09:59:24 · answer #6 · answered by shweta 2 · 0⤊ 0⤋