Question

subtract the sum of -5/7and4/28 from the sum of15/14 and 31/42​

Answer 1

Answer:

$\frac{15}{14} + \frac{31}{42} \\ = \frac{45 + 31}{42} \\ = \frac{76}{42} \\ \boxed{= \underline{ \underline{\frac{38}{21} }}} \\ \\ \frac{ - 5}{7} + \frac{4}{28} \\ = \frac{ - 5}{7} + \frac{1}{7} \\ = \frac{ - 5 + 1}{7} \\ \boxed{= \underline{ \underline{ \frac{ - 4}{7} }}} \\ \\ \frac{38}{21} - \frac{ - 4}{7} \\ = \frac{38 - ( - 12)}{21} \\ = \frac{38 + 12}{21} \\ = \frac{50}{21} \\ \large{ \boxed{= \underline{ \underline{ \bf 2 \frac{8}{21} }}}}$