45:3 6/13-13,6+1 3/8=

Question

45:3 6/13-13,6+1 3/8=

Answer 1

= 45/1 : 45/13 -13,6 + 1ц3/8 = 45/1*13/45 - 13,6 + 1ц3/8 = 13-13,6+1ц3/8 = 
= 1ц3/8 - 0,6 = 11/8 - 6/10 = 11/8 - 3/5 = 55/40 - 24/40 = 31/40

Comments

Спасибо