## anonymous 4 years ago which ratio forms a proportion with 30/42 15/27 28/40 45/63 21/15

1. Jusaquikie

$\frac{ 30 }{42 } (\div) 6 = \frac{ 5 }{7 }$ $\frac{ 45 }{63 }(\div)9 = \frac{ 5 }{7 }$ so the answer is $\frac{ 45 }{63}$

2. Jusaquikie

another way to get it is to cross multiply if you get the same number they are proportional. 30*63 = 1890 45*42 = 1890

3. anonymous

thanks!

4. Jusaquikie

np good luck

5. anonymous

much needed ha.