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: 167/250
167/250 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 167 is a prime number.
- 250 = 2 × 53
- GCF (167; 250) = 1
The fraction: 156/241
156/241 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 156 = 22 × 3 × 13
- 241 is a prime number.
- GCF (156; 241) = 1
The fraction: 138/265
138/265 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 138 = 2 × 3 × 23
- 265 = 5 × 53
- GCF (138; 265) = 1
The fraction: 149/303
149/303 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 149 is a prime number.
- 303 = 3 × 101
- GCF (149; 303) = 1
The fraction: 155/346
155/346 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 155 = 5 × 31
- 346 = 2 × 173
- GCF (155; 346) = 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:
167 is a prime number.
156 = 22 × 3 × 13
138 = 2 × 3 × 23
149 is a prime number.
155 = 5 × 31
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 (167, 156, 138, 149, 155) = 22 × 3 × 5 × 13 × 23 × 31 × 149 × 167 = 13,838,431,620
Calculate the expanding number of each fraction:
Divide the LCM by the numerator of each fraction.
167/250 ⟶ 13,838,431,620 ÷ 167 = (22 × 3 × 5 × 13 × 23 × 31 × 149 × 167) ÷ 167 = 82,864,860
156/241 ⟶ 13,838,431,620 ÷ 156 = (22 × 3 × 5 × 13 × 23 × 31 × 149 × 167) ÷ (22 × 3 × 13) = 88,707,895
138/265 ⟶ 13,838,431,620 ÷ 138 = (22 × 3 × 5 × 13 × 23 × 31 × 149 × 167) ÷ (2 × 3 × 23) = 100,278,490
149/303 ⟶ 13,838,431,620 ÷ 149 = (22 × 3 × 5 × 13 × 23 × 31 × 149 × 167) ÷ 149 = 92,875,380
155/346 ⟶ 13,838,431,620 ÷ 155 = (22 × 3 × 5 × 13 × 23 × 31 × 149 × 167) ÷ (5 × 31) = 89,280,204
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:
167/250 = (82,864,860 × 167)/(82,864,860 × 250) = 13,838,431,620/20,716,215,000
156/241 = (88,707,895 × 156)/(88,707,895 × 241) = 13,838,431,620/21,378,602,695
138/265 = (100,278,490 × 138)/(100,278,490 × 265) = 13,838,431,620/26,573,799,850
149/303 = (92,875,380 × 149)/(92,875,380 × 303) = 13,838,431,620/28,141,240,140
155/346 = (89,280,204 × 155)/(89,280,204 × 346) = 13,838,431,620/30,890,950,584