1. Compare the following ratios. a. 5 : 9 and 7: 12 b. 11:16 and 13:20 c. 15:32 and 19:40 d. 25:42 and 39: 56 with method
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a. 5:9 and 7:12
= LCM of 9 and 12 = 36
5*4 = 20 and 9*4= 36 = 20:36
7*3=21 AND 12*3=36 = 21:36
= 20 : 36 < 21:36
= 5:9<7:12
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