Пошаговое объяснение:
(5 1/2+2 3/5)*5/9 = (5 5/10 + 2 6/10) * 5/9 = 7 11/10 * 5/9 = 81/10 * 5/9 = 4 1/2
(7-2 5/16)*4/25 = 4 11/16 * 4/25 = 75/16 * 4/25 = 3/4
1)5 1/2+2 3/5=7 11/10=8 1/10
8 1/10*5/9=81/10*5/9=9/2=4 1/2
2)7-2 5/16=7/1*37/16=75/16
75/16*4/25=3/4
Пошаговое объяснение:
(5 1/2+2 3/5)*5/9 = (5 5/10 + 2 6/10) * 5/9 = 7 11/10 * 5/9 = 81/10 * 5/9 = 4 1/2
(7-2 5/16)*4/25 = 4 11/16 * 4/25 = 75/16 * 4/25 = 3/4
Пошаговое объяснение:
1)5 1/2+2 3/5=7 11/10=8 1/10
8 1/10*5/9=81/10*5/9=9/2=4 1/2
2)7-2 5/16=7/1*37/16=75/16
75/16*4/25=3/4