You can also check to see if two ratios are equivalent by determining their cross products.
Their cross products should be equal
27/6 = 18/4
Then their cross products
4*27 = 18*6
108 = 108
2 Answers By Expert Tutors
Mark M. answered • 08/13/19
Tutor
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(278)
Mathematics Teacher - NCLB Highly Qualified
27 : 6 = 9 : 2
18 : 4 = 9 : 2
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