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Are the two ratios 9 liters milk : 21 dollars
and 21 liters milk : 49 dollars
Step 1: [Write ratio as fraction.]9 : 21 =
Step 2: [Divide both numerator and denominator by their GCF 3.] = =
Step 3: [Write ratio as a fraction.]21 : 49 =
Step 4: [Divide both numerator and denominator by their GCF 7.] = =
Step 5: So, the two ratios are equivalent.