-2/9+5/7
To add these fractions, we first need to find a common denominator. In this case, the common denominator is 63.
(-2/9) + (5/7) = (-14/63) + (45/63)
= -14/63 + 45/63
= (45 - 14) / 63
= 31/63
Therefore, -2/9 + 5/7 = 31/63.
(-2/9) + (5/7) = (-14/63) + (45/63)
= -14/63 + 45/63
= (45 - 14) / 63
= 31/63
Therefore, -2/9 + 5/7 = 31/63.