Solutions: Section 7.1

Page 152: Figure It Out

Q1. Three guavas together weigh 1 kg. If they are roughly of the same size, each guava will roughly weigh ____ kg. Answer: $\frac{1}{3}$ kg. Reasoning: 1 whole unit divided by 3 items.

Q2. A wholesale merchant packed 1 kg of rice in four packets of equal weight. The weight of each packet is ___ kg. Answer: $\frac{1}{4}$ kg.

Q3. Four friends ordered 3 glasses of sugarcane juice and shared it equally among themselves. Each one drank ____ glass of sugarcane juice. Answer: $\frac{3}{4}$ glass. Reasoning: 3 items shared by 4 people $\rightarrow \frac{3}{4}$.

Q4. The big fish weighs $\frac{1}{2}$ kg. The small one weighs $\frac{1}{4}$ kg. Together they weigh ____ kg. Answer: $\frac{3}{4}$ kg. Reasoning: $\frac{1}{2} = \frac{2}{4}$. So $\frac{2}{4} + \frac{1}{4} = \frac{3}{4}$.

Q5. Arrange these fraction words in order of size from the smallest to the biggest: One and a half, three quarters, one and a quarter, half, quarter, two and a half.

Answer:

1. Quarter ($\frac{1}{4}$)
2. Half ($\frac{1}{2}$)
3. Three quarters ($\frac{3}{4}$)
4. One and a quarter ($1 \frac{1}{4}$)
5. One and a half ($1 \frac{1}{2}$)
6. Two and a half ($2 \frac{1}{2}$)