6 целых3/8-2целых3/4×(-4)+7/18×9

Question

6 целых3/8-2целых3/4×(-4)+7/18×9

Answer 1

6 3/8 - 2 3/4 * (- 4) + 7/8 * 9 = 51/8 - 11/4 * (- 4) + 7/18 * 9 = 51/8 + 11 +7/2 = 
51/8 + 11 + 28/8 = 79/8 + 11 = 9 7/8 + 11 = 20 7/8