Question

12.) What should be added to2/3+3/5 to get -2/15​

Answer 1

Answer:

Hello....

=2/3 +3/5

=10+9/15

=19/15 +-21/15

= 19+-21/15

= -2/15....

so,-21/15 is to be added to 2/3 +3/5....

Hope it helps...

plz mark as brain liest answer✅...

Answer 2

Step-by-step explanation:

• $let \: the \: thrid \: number \: be \: x$
• $x + \frac{2}{3} + \frac{3}{5 } = \frac{ - 2}{15}$
• $lcm \: of \: 3and \:5 \: is \: 15$
• $\frac{2}{3} \times \frac{5}{5} = \frac{10}{15 }$
• $\frac{3}{5} \times \frac{3}{3} = \frac{9}{15}$
• $there fore \: \frac{10}{15 } + \frac{9 }{15}$
• $= \frac{19}{15}$
• $x + \frac{19}{15} = \frac{ - 2}{15}$
• $x = \frac{ - 2}{15} - \frac{19}{15 }$

$x = \frac{ - 21}{15}$

$x = 1 \frac{6}{15}$