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2.) jika sudah,baru dijumlahkan
= 3 2/3 + ( 1 3/7 : 2 1/7 )
= 1 3/7 : 2 1/7
= 10/7 x 7/15
= 2/3
= 3 2/3 + 2/3
= 3 4/3
= 4 1/3
= 11/3 + 10/7 : 15/7
= 11/3 + 10/7 × 7/15
= 11/3 + 70/105
= 385/105 + 70/105
= 455/105
= 4 35/105
= 4 1/3