Question

Convert each of the following sets of unlike decimals to like decimal:

(i) 7.8, 7.85
(ii) 2.02, 3.2
(iii) 0.6, 5.8, 12.765
(iv) 5.296, 5.2, 5.29
(v) 4.3294, 43.29, 432.94

Answer 1

(i) Of the two given decimals, 7.85 has more decimal places, i.e., two, so we change 7.8 so that it has two decimal places.
Therefore, the like decimals are 7.80 and 7.85.

(ii) Of the two given decimals, 2.02 has more decimal places, i.e., two, so we change 3.2 so that it has two decimal places.
Therefore, the like decimals are 2.02 and 3.20.

(iii) Of the three given decimals, 12.765 has the highest number of decimal places, i.e., three, so we change the other two decimals so that they also have three decimal places.
Therefore, the like decimals are 0.600, 5.800 and 12.765.

(iv) Of the three given decimals, 5.296 has the highest number of decimal places, i.e., three, so we change the other two decimals so that they also have three decimal places.
Therefore, the like decimals are 5.296, 5.200 and 5.290.

(v) Among the three given decimals, 4.3294 has the highest number of decimal places, i.e., four, so we change all the decimals so that they also have four decimal places.
Therefore, the like decimals are 4.3294, 43.2900 and 432.9400.