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Setiap ngasih pertanyaan ini direport terus

Please bantu soal saya :)

Please bantu soal saya 🙂

Penjelasan dengan langkah-langkah:

1a. 8/9 – 5/9 = (8 – 5)/9 = 4/9

b. 3/4 – 1/2 = 3/4 – 2/4 = (3 -2)/4 = 1/4

c. 9/15 – 4/15 – 3/15 = (9 – 4 – 3)/15 = 2/15

d. 8/9 – 1/3 – 10/27 = 24/27 – 9/27 – 10/27 = (24 – 9 – 10)/27 = 5/27.

2a. 8 3/4 – 3 5/9 = 35/4 – 32/9 = 315/36 – 128/36 = 187/36 = 5 7/36

b. 12 5/6 – 10 4/5 = 77/6 – 54/5 = 385/30 – 324/30 = 61/30 = 2 1/30

c. 231.38 – 10.24 = 221.14

d. 457.61 – 36.40 = 421.21

3a. 4 3/5 – 1.2 = 23/5 – 12/10 = 46/10 – 12/10 = 34/10 = 3.4

b. 4.6 – 5/8 = 46/10 – 5/8 = 184/40 – 25/40 = 159/40 = 3.975

c. 85% – 3/5 = 85/100 – 3/5 = 85/100 – 60/100 = 25/100 = 1/4 = 0.25

d. 3 1/2 – 45% – 2/5 = 7/2 – 45/100 – 2/5 = 350/100 – 45/100 – 40/100 = 265/100 = 2 65/100 = 2 13/20

4a. 8 3/4 – 4 2/6 = 35/4 – 26/6 = 105/12 – 52/12 = 53/12 = 4 5/12

b. 7/8 – 2/5 = 35/40 – 16/40 = 19/40

c. 10/11 – 1/4 – 4/8 = 10/11 – 1/4 – 1/2 = 40/44 – 11/44 – 22/44 = 7/44

d. 24/25 – 1/2 – 2/5 = 48/50 – 25/50 – 20/50 = 3/50

Jawab:

1. A. frac{8}{9} - frac{5}{9} = frac{3}{9}

  B. frac{3}{4} - frac{1}{2} = frac{2}{2} = frac{1}{1}

  C. frac{9}{15} - frac{4}{15} - frac{3}{15} = frac{2}{15}

  D. frac{8}{9} - frac{1}{3} - frac{10}{27} = frac{1}{15}

2. A. 8 frac{3}{4} - 3 frac{5}{9} = frac{35}{4} - frac{22}{9} = frac{13}{5}

   B. 12 frac{5}{6} - 10 frac{4}{5} = frac{82}{6} - frac{54}{5} = frac{28}{1}

   C. 231,38 – 10,24  = 221,14

   D. 457,61 – 36,40 = 421,21

3. A. 4 frac{3}{5} - 1,2 = frac{23}{5} - frac{12}{10} = frac{11}{5}

   B. 4,6 - frac{5}{8} = frac{46}{10} - frac{5}{8} = frac{46}{2} = frac{23}{1}

   C. 85 % – frac{3}{5} = frac{85}{100} - frac{3}{5} = frac{82}{95}

   D. 3 frac{1}{2} - 45 % - frac{2}{5} = frac{7}{2} - frac{45}{100} - frac{2}{5} = frac{36}{93} = frac{12}{31}

4. A. 8 frac{3}{4} - 4 frac{2}{6} = frac{35}{4} - frac{24}{6} = frac{11}{2}

   B.frac{7}{8} - frac{2}{5} = frac{5}{3}

   C. frac{10}{11} - frac{1}{4} - frac{4}{8} = frac{5}{7}

   D. frac{24}{25} - frac{1}{2} -frac{2}{5} = frac{21}{18}

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