Analyze the fractions to be compared and ordered, by category:
positive proper fractions: 109/157, 89/177, 99/172, 80/193, 112/242
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: 109/157
109/157 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 109 is a prime number.
- 157 is a prime number.
- GCF (109; 157) = 1
The fraction: 89/177
89/177 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 89 is a prime number.
- 177 = 3 × 59
- GCF (89; 177) = 1
The fraction: 99/172
99/172 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 99 = 32 × 11
- 172 = 22 × 43
- GCF (99; 172) = 1
The fraction: 80/193
80/193 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 80 = 24 × 5
- 193 is a prime number.
- GCF (80; 193) = 1
The fraction: 112/242
- The prime factorizations of the numerator and denominator:
- 112 = 24 × 7
- 242 = 2 × 112
- 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 (112; 242) = 2
112/242 = (112 ÷ 2)/(242 ÷ 2) = 56/121
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
112/242 = (24 × 7)/(2 × 112) = ((24 × 7) ÷ 2)/((2 × 112) ÷ 2) = 56/121
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:
109 is a prime number.
89 is a prime number.
99 = 32 × 11
80 = 24 × 5
56 = 23 × 7
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 (109, 89, 99, 80, 56) = 24 × 32 × 5 × 7 × 11 × 89 × 109 = 537,823,440
Calculate the expanding number of each fraction:
Divide the LCM by the numerator of each fraction.
109/157 ⟶ 537,823,440 ÷ 109 = (24 × 32 × 5 × 7 × 11 × 89 × 109) ÷ 109 = 4,934,160
89/177 ⟶ 537,823,440 ÷ 89 = (24 × 32 × 5 × 7 × 11 × 89 × 109) ÷ 89 = 6,042,960
99/172 ⟶ 537,823,440 ÷ 99 = (24 × 32 × 5 × 7 × 11 × 89 × 109) ÷ (32 × 11) = 5,432,560
80/193 ⟶ 537,823,440 ÷ 80 = (24 × 32 × 5 × 7 × 11 × 89 × 109) ÷ (24 × 5) = 6,722,793
56/121 ⟶ 537,823,440 ÷ 56 = (24 × 32 × 5 × 7 × 11 × 89 × 109) ÷ (23 × 7) = 9,603,990
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:
109/157 = (4,934,160 × 109)/(4,934,160 × 157) = 537,823,440/774,663,120
89/177 = (6,042,960 × 89)/(6,042,960 × 177) = 537,823,440/1,069,603,920
99/172 = (5,432,560 × 99)/(5,432,560 × 172) = 537,823,440/934,400,320
80/193 = (6,722,793 × 80)/(6,722,793 × 193) = 537,823,440/1,297,499,049
56/121 = (9,603,990 × 56)/(9,603,990 × 121) = 537,823,440/1,162,082,790