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: - 173/262
- 173/262 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 173 is a prime number.
- 262 = 2 × 131
- GCF (173; 262) = 1
The fraction: - 159/243
- The prime factorizations of the numerator and denominator:
- 159 = 3 × 53
- 243 = 35
- 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 (159; 243) = 3
- 159/243 = - (159 ÷ 3)/(243 ÷ 3) = - 53/81
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 159/243 = - (3 × 53)/35 = - ((3 × 53) ÷ 3)/(35 ÷ 3) = - 53/81
The fraction: - 147/277
- 147/277 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 147 = 3 × 72
- 277 is a prime number.
- GCF (147; 277) = 1
The fraction: - 155/317
- 155/317 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 155 = 5 × 31
- 317 is a prime number.
- GCF (155; 317) = 1
The fraction: - 165/355
- 165 = 3 × 5 × 11
- 355 = 5 × 71
- GCF (165; 355) = 5
- 165/355 = - (165 ÷ 5)/(355 ÷ 5) = - 33/71
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 165/355 = - (3 × 5 × 11)/(5 × 71) = - ((3 × 5 × 11) ÷ 5)/((5 × 71) ÷ 5) = - 33/71
Calculate the expanding number of each fraction:
Divide the LCM by the numerator of each fraction.
- 173/262 ⟶ 2,298,072,315 ÷ 173 = (3 × 5 × 72 × 11 × 31 × 53 × 173) ÷ 173 = 13,283,655
- 53/81 ⟶ 2,298,072,315 ÷ 53 = (3 × 5 × 72 × 11 × 31 × 53 × 173) ÷ 53 = 43,359,855
- 147/277 ⟶ 2,298,072,315 ÷ 147 = (3 × 5 × 72 × 11 × 31 × 53 × 173) ÷ (3 × 72) = 15,633,145
- 155/317 ⟶ 2,298,072,315 ÷ 155 = (3 × 5 × 72 × 11 × 31 × 53 × 173) ÷ (5 × 31) = 14,826,273
- 33/71 ⟶ 2,298,072,315 ÷ 33 = (3 × 5 × 72 × 11 × 31 × 53 × 173) ÷ (3 × 11) = 69,638,555
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:
- 173/262 = - (13,283,655 × 173)/(13,283,655 × 262) = - 2,298,072,315/3,480,317,610
- 53/81 = - (43,359,855 × 53)/(43,359,855 × 81) = - 2,298,072,315/3,512,148,255
- 147/277 = - (15,633,145 × 147)/(15,633,145 × 277) = - 2,298,072,315/4,330,381,165
- 155/317 = - (14,826,273 × 155)/(14,826,273 × 317) = - 2,298,072,315/4,699,928,541
- 33/71 = - (69,638,555 × 33)/(69,638,555 × 71) = - 2,298,072,315/4,944,337,405