Lay out the records of anticipated monthly income and scaled-down expenses for all family members to see and evaluate. It's easier to see the general pattern of spending if expenses are categorized. This reveals the percentage of income spent on food, housing, clothing, medical care, insurance, and other items. However, examining spending by category will highlight potential differences between your family's stated goals and priorities and your actual spending patterns and income. If these differences are significant, you need to reach agreement on a plan for changing the way income is allocated.
Some expenses are more important than others.
Putting your bills in a stack and paying them until the money runs out won't work. You may not have enough money to pay all your expenses, but you must get the most out of what you do have. Set priorities for your spending to make sure you meet the health and welfare needs of family members and minimize the legal and economic risks of not paying some bills. Obviously, food and shelter for your family should be the first priority with the income you have available. After those two are taken care of, hard choices may need to be made on which bills you must pay first.