part A: jonothan days he knows that 1/2 of 2 1/2 is 1 1/4 and he knows that 5/8 is almost. half if you use estimation. but he is not sure wether 5/8 x 2 1/2 will be more pr elss than 1 1/4. answers: A: 5/8 x 2 1/2 is equal to 1 1/4 B: 5/8 x 2 1/2 is less than 1 1/4 C: 5/8 x 2 1/2 is more than 1 1/4 D: its is not possible to say using estimation.​