Question

17/8+16/5+21/10
please solve this question​

Answer 1

Answer:

$\frac{297}{40} \: \: or \: \: 7\frac{17}{40}$

Step-by-step explanation:

$\frac{17}{8} + \frac{16}{5} + \frac{21}{10} \\ \\ lcm = 2 \times 5 \times 2 \times 2 = 8 \times 5 = 40 \\ \\ = \frac{17}{8} \times \frac{5}{5} = \frac{85}{40} \\ \\ = \frac{16}{5} \times \frac{8}{8} = \frac{128}{40} \\ \\ = \frac{21}{10} \times \frac{4}{4} = \frac{84}{40} \\ \\ = \frac{85 + 128 + 84}{40} \\ \\ = \frac{297}{40} \\ \\ = 7\frac{17}{40}$

Answer 2

Answer:

Step-by-step explanation:

= 17/8 + 16/5 + 21/10

LCM is 40

= 17*5/8*5 + 16*8/5*8 + 21*4/10*4

= 85/40 + 128/40 + 84/40

= 297/40