Question

Naina bought 3 2/5 kg of oranges and her mother bought 6 2/3 kg of oranges.Find the total quantity of oranges they bought?​

Answer 1

Step-by-step explanation:

Oranges that Naina bought = 3 2/5 kg

Oranges that Naina's mother bought = 6 2/3 kg

Total oranges = 3 2/5 + 6 2/3

= 17/5 + 20/3

LCM = 15

= 17×3/5×3 + 20×5/3×5

= 51+100/15

= 151/15

= 10 1/15 kg

Therefore, the the total quantity of oranges they bought is 10 1/15 kg

Answer 2

Quantity of orange bought by Naina :-

$= 3 \frac{2}{5} \: \: kg$

$\color{olive}=\color{hotpink} \frac{17}{5} \color{olive}\: kg$

Quantity of orange bought by Naina's mother :-

$= 6 \frac{2}{3} \: \: kg$

$\color{olive} = \color{hotpink} \frac{20}{3} \color{olive}\: kg$

Quantity of orange they both bought together :-

$= \frac{17}{5} + \frac{20}{3}$

$= \frac{(17 \times 3)}{15} + \frac{(20 \times 5)}{15}$

$= \frac{51}{15} + \frac{100}{15}$

$= \frac{(51 + 100)}{15}$

$= \frac{151}{15}$

$\color{olive} =\color{hotpink} 10 \frac{1}{15} \color{olive} \: \: kg$

Therefore the total quantity of orange bought by Naina and her mother is :-

$\color{olive} = \color{hotpink}10 \frac{1}{15} \color{olive}\: \: kg$