Xiao Ming is wrong in calculating a number (≠ 0) by two fifths. What is the correct answer? Quick! Quick
2 / 5 × 2 / 5 = 4 / 25
Xiao Feng divided a number by 35 and miscalculated it by 35. How many parts of the correct answer is the result?
Suppose that the number is 1; the correct number is 1 / 35 = 53; the calculated number is 1 × 35 = 35; 35 / 53 = 925. A: the calculated number is 925 of the correct answer
Three fifths of 40 is a fraction of 80