Question

What number should be added to -3/5 to get 2/3 in HD video

Answer 1

as one number is given and other is missing
therefore let the other no be x
then


$\frac{ - 3}{5} + x = \frac{2}{3} \\ \\ x = \frac{2}{3} + \frac{3}{5} \\ \\ x = \frac{5(2) + 3(3)}{15} \\ \\ x = \frac{10 + 9}{15} \\ \\ x = \frac{19}{15}$



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Answer 2

x+(-3/5)=2/3
x=2/5-(-3/5)
x=2×5+3×3/15
x=10+9/15
x=19/15