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= 2 1/2 - 1 1/4 - 5/6
= 5/2 - 5/4 - 5/6
= 30/12 - 15/12 - 10/12
= 5/12
Jadi panjang pita Erna sekarang adalah 5/12 m (C. 5/12 m)
= +
=
=
Sisa.
= -
= m (c)