Question

solve -3/13+15/17×-3/13+17/15

Answer 1

Take LCM,
(-51+195/221 )× (-45+221/195)
144/221 × 176/195
= 0.58 ....Ans

Answer 2

Hey Mate

Here is your answer

$\frac{ - 3}{13} + \frac{15}{17} \times \frac{ - 3}{13} + \frac{17}{15} \\ \\ = > \frac{ - 3}{13} + \frac{ - 45}{221} + \frac{17}{15} \\ \\ lcm \: of \: 13 \: \: \: 221 \: and \: 15 \: is \: = \: 3315 \\ \\ = > \frac{ - 765 \: - 675 \: + 3757}{3315} \\ \\ = > \frac{2317}{3315}$

Hope it helps

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