Answer:
3 1/2 ; 3 19/20 ; 3 39/40
Explanation:
Find common denominators. Change all mixed fraction to improper fractions before finding common denominators.
3 1/2 = 6/2 + 1/2 = 7/2
3 19/20 = 60/20 + 19/20 = 79/20
3 39/40 = 120/40 + 39/40 = 159/40
Find the common denominators. The smallest common denominators is 40. Remember that what you do to the denominator you do to the numerator:
3 1/2 = (7/2)(20/20) = 140/40
3 19/20 = (79/20)(2/2) = 158/40
3 39/40 = (159/40) = 159/40
Least to Greatest:
3 1/2 ; 3 19/20 ; 3 39/40
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