Pergunta
(3)/(8)+(7)/(10) 2 (4)/(5)+(13)/(15) (4) 1(5)/(6)+1(1)/(2) 5 2(1)/(6)+1(1)/(2) 3 (11)/(12)+(1)/(4) 6 1(2)/(3)+2(3)/(4)
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ZulmiraVeterano · Tutor por 12 anos
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Mari kita selesaikan satu per satu:<br /><br />1. $\frac{3}{8} + \frac{7}{10}$<br /> - Cari penyebut bersama: 40<br /> - Ubah pecahan: $\frac{15}{40} + \frac{28}{40}$<br /> - Jumlahkan: $\frac{43}{40} = 1\frac{3}{40}$<br /><br />2. $2\frac{4}{5} + \frac{13}{15}$<br /> - Ubah pecahan campuran: $2\frac{4}{5} = \frac{14}{5}$<br /> - Cari penyebut bersama: 15<br /> - Ubah pecahan: $\frac{42}{15} + \frac{13}{15}$<br /> - Jumlahkan: $\frac{55}{15} = 3\frac{10}{15} = 3\frac{2}{3}$<br /><br />3. $1\frac{5}{6} + 1\frac{1}{2}$<br /> - Ubah pecahan campuran: $1\frac{5}{6} = \frac{11}{6}$ dan $1\frac{1}{2} = \frac{3}{2}$<br /> - Cari penyebut bersama: 6<br /> - Ubah pecahan: $\frac{11}{6} + \frac{9}{6}$<br /> - Jumlahkan: $\frac{20}{6} = 3\frac{2}{6} = 3\frac{1}{3}$<br /><br />4. $2\frac{1}{6} + 1\frac{1}{2}$<br /> - Ubah pecahan campuran: $2\frac{1}{6} = \frac{13}{6}$ dan $1\frac{1}{2} = \frac{3}{2}$<br /> - Cari penyebut bersama: 6<br /> - Ubah pecahan: $\frac{13}{6} + \frac{9}{6}$<br /> - Jumlahkan: $\frac{22}{6} = 3\frac{4}{6} = 3\frac{2}{3}$<br /><br />5. $\frac{11}{12} + \frac{1}{4}$<br /> - Cari penyebut bersama: 12<br /> - Ubah pecahan: $\frac{11}{12} + \frac{3}{12}$<br /> - Jumlahkan: $\frac{14}{12} = 1\frac{2}{12} = 1\frac{1}{6}$<br /><br />6. $1\frac{2}{3} + 2\frac{3}{4}$<br /> - Ubah pecahan campuran: $1\frac{2}{3} = \frac{5}{3}$ dan $2\frac{3}{4} = \frac{11}{4}$<br /> - Cari penyebut bersama: 12<br /> - Ubah pecahan: $\frac{20}{12} + \frac{33}{12}$<br /> - Jumlahkan: $\frac{53}{12} = 4\frac{5}{12}$
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