Nomor 3...buat beserta jalannya.... Question from @mustofa180

mustofa180 @mustofa180

September 2018 2 25 Report

Nomor 3...buat beserta jalannya

FadNugro 4 2/5 - 1 1/3 + 2 3/4
22/5 - 4/3 +11/4
264/60 - 80/60 + 165/60
184/60 + 165/60
349/60
5 49/60

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mustofa180 maksudnya

mustofa180 buat jalannya?

Lianto A.) 2/15 - 1/2 + 3/10
$\frac{4 - 15 + 9}{30} = \frac{-2}{30} = -\frac{1}{15}$

b.) 3/7 + 4/21 - 13/14
$\frac{18 + 8 - 39}{42} = -\frac{13}{42}$

c.) 4 2/5 - 1 1/3 + 2 3/4
$\frac{22}{5} - \frac{4}{3} + \frac{11}{4} = \frac{264 - 80 + 165}{60} = \frac{349}{60}$ $= 5 \frac{49}{60}$

d.) 10 1/4 + 1 2/3 + 20 7/8
$\frac{41}{4} + \frac{5}{3} + \frac{167}{8} = \frac{246 + 40 + 501}{24} = \frac{787}{24} = 32 \frac{19}{24}$

e.) 2,25 + 25% + 1 1/2
$\frac{225}{100} + \frac{25}{100} + \frac{3}{2}$
= $\frac{9}{4} + \frac{1}{4} + \frac{6}{4}$
= $\frac{9+1+4}{4}$
= $\frac{14}{4}$
= $\frac{7}{2}$
= $3 \frac{1}{2}$

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