Pertanyaan terlampir (+50)
[tex]10 \frac{5}{8 } - 4 \frac{5}{12} + 2 \frac{3}{4} = 10\frac{15}{24} - 4\frac{10}{24} + 2\frac{18}{24} \\ \huge\bf \: dahulukan \: penjumlahan \\ = (10 - 4 + 2) \frac{15 - 10 + 18}{24} \\ \\ = (6 + 2) \frac{5 + 18}{24} \\ \\ = 8 \frac{23}{24} [/tex]
[tex]12 \frac{5}{6} + 3 \frac{1}{12} - 5 \frac{1}{4} = 12\frac{10}{12} + 3\frac{1}{12} - 5 \frac{3}{12} \\ \\ = (12 + 3 - 5) \frac{10 + 1 - 3}{12} \\ \\ = (15 - 5) \frac{8}{12} \\ \\ = 10 \frac{8:4}{12:4} \\ \\ \huge\boxed{ \color{aquamarine}10 \frac{2}{3} }[/tex]
Penjelasan dengan langkah-langkah:
3.)
= 10 5/8 - 4 5/12 + 2 3/4
= 85/8 - 53/12 + 11/4
= 255/24 - 106/24 + 66/24
= 149/24 + 66/24
= 215/24
= 8 23/24
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4.)
= 12 5/6 + 3 1/12 - 5 1/4
= 77/6 + 37/12 - 21/4
= 154/12 + 37/12 - 63/12
= 191/12 - 63/12
= 128/12
= 10 8/12
= 10 2/3
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