1. **State the problem:** A man shared livestock among three children: Ama, Kofi, and Yaw. Ama had $\frac{2}{5}$ of the livestock, Kofi had $\frac{3}{7}$ of the livestock, and Yaw had 20 livestock. We need to find:
A. The total number of livestock shared.
B. How many livestock each child got.
2. **Define variables:** Let the total number of livestock be $x$.
3. **Express the shares:**
- Ama's share = $\frac{2}{5}x$
- Kofi's share = $\frac{3}{7}x$
- Yaw's share = 20
4. **Write the equation for total livestock:**
$$\frac{2}{5}x + \frac{3}{7}x + 20 = x$$
5. **Find a common denominator for the fractions:** The denominators are 5 and 7, so the common denominator is 35.
Rewrite the fractions:
$$\frac{2}{5}x = \frac{14}{35}x, \quad \frac{3}{7}x = \frac{15}{35}x$$
6. **Substitute back into the equation:**
$$\frac{14}{35}x + \frac{15}{35}x + 20 = x$$
7. **Combine the fractions:**
$$\frac{14 + 15}{35}x + 20 = x$$
$$\frac{29}{35}x + 20 = x$$
8. **Isolate $x$:**
$$20 = x - \frac{29}{35}x = \frac{35}{35}x - \frac{29}{35}x = \frac{6}{35}x$$
9. **Solve for $x$:**
$$x = \frac{20 \times 35}{6} = \frac{700}{6} = \frac{350}{3} \approx 116.67$$
Since the number of livestock must be a whole number, we check if the problem allows fractional livestock or if the problem expects rounding. Assuming exact division, the total livestock is $\frac{350}{3}$.
10. **Calculate each child's share:**
- Ama: $\frac{2}{5} \times \frac{350}{3} = \frac{2}{5} \times \frac{350}{3} = \frac{700}{15} = \frac{140}{3} \approx 46.67$
- Kofi: $\frac{3}{7} \times \frac{350}{3} = \frac{3}{7} \times \frac{350}{3} = \frac{350}{7} = 50$
- Yaw: 20 (given)
11. **Summary:**
- Total livestock shared: $\frac{350}{3}$ (approximately 116.67)
- Ama's share: $\frac{140}{3}$ (approximately 46.67)
- Kofi's share: 50
- Yaw's share: 20
If the problem expects whole numbers, the shares may need adjustment or the problem data may be inconsistent.
Livestock Sharing
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