I think this is what you mean. I don't know why the Latex didn't work. Good for you that you can use it.
[tex] \frac{23}{56} + \frac{3}{8} - \frac{-4}{28} [/tex]
[tex] \frac{23}{56} + \frac{3}{8} - \frac{-4}{28} [/tex] Reduce the 4/28 to 1/7
[tex] \frac{23}{56} + \frac{3}{8} - \frac{-1}{7} [/tex] Make the 2 minuses into a +
[tex] \frac{23}{56} + \frac{3}{8} + \frac{1}{7} [/tex] 56 is the common denominator.
[tex] \frac{23}{56} + \frac{21}{56} + \frac{8}{56} [/tex]
Answer = [23 + 21 + 8] / 56 = 52 / 56 = 13 / 14 When both numerator and denominator are divided by 4
13 / 14 <<<< answer.
