Б) 4 7/15 + 8 8/15 - 6 14/15 в) (4 21/23 + 6 8/23) - 3 21/23

Question

Б) 4 7/15 + 8 8/15 - 6 14/15

в) (4 21/23 + 6 8/23) - 3 21/23

Answer 1

4 7/15 + 8 8/15 - 6 14/15 = (67+128-104)/15 = 91/15 = 6 1/15
(4 21/23 + 6 8/23) - 3 21/23 = (113+143)/23 - 90/23 = 256/23 - 90/23 = 166/23 = 7 5/23