For an example, 2/15 ÷ ? = 2/3.
Please explain to me how you can do that. THANK YOU!
2007-10-31 02:32:06 · 4 answers · asked by Anonymous in Education & Reference ➔ Homework Help
Can you also help me solve the following?
5/8 ÷ ? =1 2/3
? ÷ 1 5/7 = 3/4
? ÷ 2 1/4 = 1 1/5
2007-10-31 02:44:26 · update #1
2/15 x=2/3
crossmultiply
6x=30
x=5 but since it is a division problem it would become 1/5 to fit the problem
5/8 divided by x=5/3
5/8x=5/3
15x=40
x=40/15=8/3 but you would put 3/8 because you are dividing
x divided 12/7= 3/4
7/12x=3/4
28x=36
x=36/28= 9/7 no change it is not the divisor
x divided by 9/4= 6/5
4/9 x=6/5
20x=54
x=54/20=27/10
2007-10-31 04:01:05 · answer #1 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
ok so, do you already know what go products are? you multiply the two numbers that go. so, 18 is diagonal from 11, at the same time as n is diagonal of 33, precise? As you spot, you presently multiply them, they could be equivalent, so... a million) 18x11=33n VVVV 198=33n divide 33 on the two factors 6=n get it? permit's attempt one greater. 2) what are the numbers that go one yet another? Multiply them and undergo in recommendations that they are equivalent. 2n=26x3 VVV 2n=seventy 8 divide the two factors by using 2 n=39 3) n10=5x8 n10=40 n=4 4) 16x20=5n 320=5n sixty 4=n :D ~wish I helped!~
2016-10-03 01:35:58 · answer #2 · answered by Anonymous · 0⤊ 0⤋
use algebra.. replace ? with x then
2/15/x=2/3
2/15x=2/3 *cross multiply
6=30x
x=6/30 or 1/5
2007-10-31 02:38:18 · answer #3 · answered by rikku069 3 · 1⤊ 0⤋
Missing Fractions
2017-03-02 16:37:58 · answer #4 · answered by ? 4 · 0⤊ 0⤋