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1.3 4/6 : 2 4/8=21/6:16/8=84/24:48 /24=1 36/48
2.3/2 x 2 1/4=3/2 x 9/4=12/8x 18/8=216/8=27/8
3.6 x 2/10=60/2 x 2/10=600 /20 x4 /20=