(3 1/2 + 1 4/5) * 3/5 - 1,18 / 8 1/8 * 2/13 + 1 7/9помогите

Question

(3 1/2 + 1 4/5) * 3/5 - 1,18 / 8 1/8 * 2/13 + 1 7/9
помогите

Answer 1

1)(3 1/2 + 1 4/5)=5,3
3/5 - 1,18 / 8 1/8 * 2/13 + 1 7/9=2,35
5,3*2,35=12,4

Answer 2

(3/2+4/5)*3/5-1.18:8*0.125*2/13+7/9
15+8/10*3/5-0.0184375*2/13+7/9
23/10*3/5-184375/10000000*2/13+7/9
69/50-184375/5000000*1/13+7/9
69/50-59/1600*1/13+7/9
69/50-59/20800+7/9
258336-531+145600/187200
403405/187200
80681/37440
Ответ: 80681/37440