Dua pecahan jumlah nya 3/4 dan selisihnya 1/2. Tentukan kedua pecahan tersebut..

3/4-1/2
=3/4-2/4=1/4
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SEMOGA MEMBANTU

Diketahui :
A + B = 3/4
A - B = 1/2

A = 1/2 + B
A + B = 3/4
1/2 + B + B = 3/4
1/2 + 2B = 3/4
2B = 3/4 - 1/2 = 3/4 - 2/4 = 1/4
B = 1/4 : 2 = 1/4 x 1/2 = 1/8

A - B = 1/2
A - 1/8 = 1/2
A = 1/2 + 1/8 = 4/8 + 1/8 = 5/8

Pembuktian :
A + B = 3/4
5/8 + 1/8 = 6/8 = 3/4 (terbukti)
A - B = 1/2
5/8 - 1/8 = 4/8 = 1/2 (terbukti)