Question

please find there answer and subject maths​

Answer 1

Answer:

• (a) 6.63
• (b) 2.2

Step-by-step explanation:

(a) Add $\sf 2 \dfrac{4}{5} \: and \: 3 \dfrac{5}{6}$

$: \implies \sf 2 \dfrac{4}{5} + 3 \dfrac{5}{6}$

$: \implies \sf \dfrac{14}{5} + \dfrac{23}{6}$

$: \implies \sf 6.63$

(b) Find $\sf 4 \dfrac{2}{5} - 2 \dfrac{1}{5}$

$: \implies \sf \dfrac{22}{5} - \dfrac{11}{5}$

$: \implies \sf \dfrac{11}{5}$

$: \implies \sf 2.2$

Answer 2

Step by step explanation :

$(a) \: Add \: 2 \frac{4}{5} \: and \: 3 \frac{5}{6} \\ \\ ⟹ \frac{14}{5} + \frac{23}{6} \\ \\ ⟹ \frac{84 + 115}{30} \\ \\ ⟹ \frac{199}{30} = 6.3 \\ \\ (b) \: Find \: 4 \frac{2}{5} - 2 \frac{1}{5} \\ \\ ⟹ \frac{22}{5} - \frac{11}{5} \\ \\ ⟹ \frac{22 - 11}{5} \\ \\ ⟹ \frac{11}{5} = 2.2$