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4 5/6 m => 29/6 m (jadiin ke pecahan biasa)
rumus keliling persegi panjang : 2(panjang+lebar)
: 2(74/9 + 29/6) =2(444/54 + 261/54) --->> samain penyebutnya
2(705/54) = 1410/54
26 6/54 m