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= 1 3/7 : 2 1/7 = 10/7 :15/7
= 10/7 x 7/15 = 2/3
= 2 2/3 + 2/3 = 2 4/3
= 3 1/3
= jadi hasilnya adalah 3 1/3 (a)
8/3 + 10/7 : 15/7
8/3 + (10/7 × 7/15)
8/3 + 70/105
8/3 + 10/15
40/15 + 10/15
50/15
10/3
3 1/3 (A)