1. **Convert the fractions to decimals using equivalent fractions:**
We use the formula for converting a fraction to a decimal: $$\text{Decimal} = \frac{\text{Numerator}}{\text{Denominator}}$$
**a)** $$\frac{3}{5} = \frac{3 \times 2}{5 \times 2} = \frac{6}{10} = 0.6$$
**b)** $$\frac{5}{8} = \frac{5 \times 125}{8 \times 125} = \frac{625}{1000} = 0.625$$
**c)** $$\frac{4}{10} = 0.4$$ (already with denominator 10)
**d)** $$\frac{7}{8} = \frac{7 \times 125}{8 \times 125} = \frac{875}{1000} = 0.875$$
**e)** Simplify first: $$\frac{6}{16} = \frac{3}{8}$$ then convert:
$$\frac{3}{8} = \frac{3 \times 125}{8 \times 125} = \frac{375}{1000} = 0.375$$
**f)** $$\frac{8}{15} = \frac{8 \times 20}{15 \times 20} = \frac{160}{300}$$
Divide numerator and denominator by 10:
$$\frac{\cancel{160}}{\cancel{300}} = \frac{16}{30}$$
Divide numerator and denominator by 2:
$$\frac{\cancel{16}}{\cancel{30}} = \frac{8}{15}$$ (back to original, so convert directly)
Decimal: $$\frac{8}{15} \approx 0.5333$$ (repeating)
2. **Compare the number statements using <, > or =:**
- Compare $$\frac{11}{25}$$ and 0.4:
$$\frac{11}{25} = 0.44 > 0.4$$ so $$\frac{11}{25} > 0.4$$
- Compare $$\frac{156}{500}$$ and 0.312:
$$\frac{156}{500} = 0.312 = 0.312$$ so $$\frac{156}{500} = 0.312$$
- Compare $$\frac{4}{125}$$ and 0.32:
$$\frac{4}{125} = 0.032 < 0.32$$ so $$\frac{4}{125} < 0.32$$
- Compare $$\frac{180}{300}$$ and 0.06:
$$\frac{180}{300} = 0.6 > 0.06$$ so $$\frac{180}{300} > 0.06$$
3. **Mikey's mistake and correct answer:**
Mikey said: "I convert 1/8 and got 8 as my answer."
Mistake: He likely divided 1 by 8 incorrectly or reversed the division.
Correct calculation:
$$\frac{1}{8} = 0.125$$
4. **Dean's number possibilities:**
Dean's number has 2 decimal places and satisfies:
$$\frac{4}{5} < \text{number} < \frac{47}{50}$$
Calculate decimal bounds:
$$\frac{4}{5} = 0.8$$
$$\frac{47}{50} = 0.94$$
Numbers with 2 decimal places between 0.8 and 0.94 include:
- 0.81
- 0.85
- 0.90
5. **Challenge: Who gets more muffins?**
Fabia shares 3 muffins between herself and 4 friends, total 5 people:
$$\text{Muffins per person} = \frac{3}{5} = 0.6$$
Amrit shares 5 muffins between herself and 7 friends, total 8 people:
$$\text{Muffins per person} = \frac{5}{8} = 0.625$$
Since $$0.625 > 0.6$$, Amrit gets more muffins per person.
**Final answers:**
- 5) a) 0.6, b) 0.625, c) 0.4, d) 0.875, e) 0.375, f) approx 0.5333
- 6) $$\frac{11}{25} > 0.4$$, $$\frac{156}{500} = 0.312$$, $$\frac{4}{125} < 0.32$$, $$\frac{180}{300} > 0.06$$
- 7) Mikey's mistake: incorrect division; correct answer is 0.125
- 8) Possible numbers: 0.81, 0.85, 0.90
- Challenge: Amrit gets more muffins per person
Fractions Decimals 458A9F
Step-by-step solutions with LaTeX - clean, fast, and student-friendly.