The sixth grade mathematics application question and according to the process row synthesis formula Start - with 1 / 5 + 3 / 7 - subtract the previous sum with 1 - remove the previous difference with 1 / 4 - stop Start - half - quarter - subtract the sum from 3 - multiply the difference by one sixth - stop Department stores planned to sell 5 million yuan last year. In fact, they completed three fifths of the sales plan in the first half of the year and five eighths of the plan in the second half of the year. How many million yuan more than the plan last year?

The sixth grade mathematics application question and according to the process row synthesis formula Start - with 1 / 5 + 3 / 7 - subtract the previous sum with 1 - remove the previous difference with 1 / 4 - stop Start - half - quarter - subtract the sum from 3 - multiply the difference by one sixth - stop Department stores planned to sell 5 million yuan last year. In fact, they completed three fifths of the sales plan in the first half of the year and five eighths of the plan in the second half of the year. How many million yuan more than the plan last year?

The first one: [1 - (1 / 5 + 3 / 7)] / 1 / 4 = [1-22 / 35] △ 1 / 4 = 13 / 35 △ 1 / 4 = 52 / 35
The second: 1 / 6 × [3 - (1 / 2 + 1 / 4)] = 1 / 6 × [3-3 / 4] = 1 / 6 × 9 / 4 = 3 / 8
The third: 500 × (3 / 5 + 5 / 8-1) = 500 × 9 / 40 = 1.125 million yuan