Jawab:
Penjelasan dengan langkah-langkah:
9.2 1/2: 4/5-0,42
= 5/2x5/4 - 0,42
= 25/8 - 0,42
= 25/8 x 125/125 - 0,42
= 3.125/1000-0,42
= 3,125 -0,42= 2,705
10.(3 2/5 + 2 2/3)-(1 1/3+3 4/5)
= (17/5 + 8/3) - (4/3 + 19/5)
= (17/5 x 3/3 + 8/3 X5/5) -(4/3x5/5+ 19/5x3/3)
= (51/15+40/15)-(20/15+57/15)
=91/15 - 77/15
= 14/15
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Jawab:
Penjelasan dengan langkah-langkah:
Penjelasan dengan langkah-langkah:
9.2 1/2: 4/5-0,42
= 5/2x5/4 - 0,42
= 25/8 - 0,42
= 25/8 x 125/125 - 0,42
= 3.125/1000-0,42
= 3,125 -0,42= 2,705
10.(3 2/5 + 2 2/3)-(1 1/3+3 4/5)
= (17/5 + 8/3) - (4/3 + 19/5)
= (17/5 x 3/3 + 8/3 X5/5) -(4/3x5/5+ 19/5x3/3)
= (51/15+40/15)-(20/15+57/15)
=91/15 - 77/15
= 14/15