Question

5supra21+6supra7+5supra42+9supra14..va rog....ajutor

Answer 1

$\frac{5}{21} + \frac{6}{7} + \frac{5}{42} + \frac{9}{14} = \frac{10 + 36 + 5 + 27}{42} = \frac{78}{42} = \frac{13}{7}$

Answer 2

5/21 + 6/7 + 5/42 + 9/14 =
= ( 10 + 36 + 5 + 24 )/42 =
= 78/42 = 13/7