2.1/2-3/4-1/2=3.1/2-1.1/4-1.1/6=​

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2.1/2-3/4-1/2=3.1/2-1.1/4-1.1/6=​

Jawab:

2 1/2 – 3/4 – 1/2 = 2 2/4 – 3/4 – 2/4

                         = 1 6/4 – 3/4 -2/4 = 1 1/4

3 1/2 – 1 1/4 – 1 1/6 = 3 6/12 – 1 3/12 – 1 2/12 = 1 1/12

Penjelasan dengan langkah-langkah: