Analyze the fractions to be compared and ordered, by category:
positive proper fractions: 124/169, 117/185, 111/196, 102/212, 101/272
Simplify the operation
Reduce (simplify) the fractions to their lowest terms equivalents:
- To reduce a fraction to the lowest terms equivalent: divide both the numerator and denominator by their greatest common factor, GCF.
The fraction: 124/169
124/169 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 124 = 22 × 31
- 169 = 132
- GCF (124; 169) = 1
The fraction: 117/185
117/185 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 117 = 32 × 13
- 185 = 5 × 37
- GCF (117; 185) = 1
The fraction: 111/196
111/196 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 111 = 3 × 37
- 196 = 22 × 72
- GCF (111; 196) = 1
The fraction: 102/212
- The prime factorizations of the numerator and denominator:
- 102 = 2 × 3 × 17
- 212 = 22 × 53
- Multiply all the common prime factors: if there are repeating prime factors we only take them once, and only the ones having the lowest exponent (the lowest powers).
- GCF (102; 212) = 2
102/212 = (102 ÷ 2)/(212 ÷ 2) = 51/106
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
102/212 = (2 × 3 × 17)/(22 × 53) = ((2 × 3 × 17) ÷ 2)/((22 × 53) ÷ 2) = 51/106
The fraction: 101/272
101/272 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 101 is a prime number.
- 272 = 24 × 17
- GCF (101; 272) = 1
Calculate the common numerator
The common numerator is nothing else than the least common multiple (LCM) of the numerators of the fractions.
To calculate the LCM, we need the prime factorization of the numerators:
124 = 22 × 31
117 = 32 × 13
111 = 3 × 37
51 = 3 × 17
101 is a prime number.
Multiply all the unique prime factors: if there are repeating prime factors we only take them once, and only the ones having the highest exponent (the highest powers).
LCM (124, 117, 111, 51, 101) = 22 × 32 × 13 × 17 × 31 × 37 × 101 = 921,678,732
Calculate the expanding number of each fraction:
Divide the LCM by the numerator of each fraction.
124/169 ⟶ 921,678,732 ÷ 124 = (22 × 32 × 13 × 17 × 31 × 37 × 101) ÷ (22 × 31) = 7,432,893
117/185 ⟶ 921,678,732 ÷ 117 = (22 × 32 × 13 × 17 × 31 × 37 × 101) ÷ (32 × 13) = 7,877,596
111/196 ⟶ 921,678,732 ÷ 111 = (22 × 32 × 13 × 17 × 31 × 37 × 101) ÷ (3 × 37) = 8,303,412
51/106 ⟶ 921,678,732 ÷ 51 = (22 × 32 × 13 × 17 × 31 × 37 × 101) ÷ (3 × 17) = 18,072,132
101/272 ⟶ 921,678,732 ÷ 101 = (22 × 32 × 13 × 17 × 31 × 37 × 101) ÷ 101 = 9,125,532
Make the numerators of the fractions the same:
- Expand each fraction: multiply both its numerator and denominator by its corresponding expanding number, calculated above.
- This way all the fractions will have the same numerator:
124/169 = (7,432,893 × 124)/(7,432,893 × 169) = 921,678,732/1,256,158,917
117/185 = (7,877,596 × 117)/(7,877,596 × 185) = 921,678,732/1,457,355,260
111/196 = (8,303,412 × 111)/(8,303,412 × 196) = 921,678,732/1,627,468,752
51/106 = (18,072,132 × 51)/(18,072,132 × 106) = 921,678,732/1,915,645,992
101/272 = (9,125,532 × 101)/(9,125,532 × 272) = 921,678,732/2,482,144,704