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: - 146/209
- 146/209 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 146 = 2 × 73
- 209 = 11 × 19
- GCF (146; 209) = 1
The fraction: - 141/234
- The prime factorizations of the numerator and denominator:
- 141 = 3 × 47
- 234 = 2 × 32 × 13
- 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 (141; 234) = 3
- 141/234 = - (141 ÷ 3)/(234 ÷ 3) = - 47/78
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 141/234 = - (3 × 47)/(2 × 32 × 13) = - ((3 × 47) ÷ 3)/((2 × 32 × 13) ÷ 3) = - 47/78
The fraction: - 125/249
- 125/249 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 125 = 53
- 249 = 3 × 83
- GCF (125; 249) = 1
The fraction: - 129/262
- 129/262 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 129 = 3 × 43
- 262 = 2 × 131
- GCF (129; 262) = 1
The fraction: - 118/311
- 118/311 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 118 = 2 × 59
- 311 is a prime number.
- GCF (118; 311) = 1
Calculate the expanding number of each fraction:
Divide the LCM by the numerator of each fraction.
- 146/209 ⟶ 6,528,335,250 ÷ 146 = (2 × 3 × 53 × 43 × 47 × 59 × 73) ÷ (2 × 73) = 44,714,625
- 47/78 ⟶ 6,528,335,250 ÷ 47 = (2 × 3 × 53 × 43 × 47 × 59 × 73) ÷ 47 = 138,900,750
- 125/249 ⟶ 6,528,335,250 ÷ 125 = (2 × 3 × 53 × 43 × 47 × 59 × 73) ÷ 53 = 52,226,682
- 129/262 ⟶ 6,528,335,250 ÷ 129 = (2 × 3 × 53 × 43 × 47 × 59 × 73) ÷ (3 × 43) = 50,607,250
- 118/311 ⟶ 6,528,335,250 ÷ 118 = (2 × 3 × 53 × 43 × 47 × 59 × 73) ÷ (2 × 59) = 55,324,875
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:
- 146/209 = - (44,714,625 × 146)/(44,714,625 × 209) = - 6,528,335,250/9,345,356,625
- 47/78 = - (138,900,750 × 47)/(138,900,750 × 78) = - 6,528,335,250/10,834,258,500
- 125/249 = - (52,226,682 × 125)/(52,226,682 × 249) = - 6,528,335,250/13,004,443,818
- 129/262 = - (50,607,250 × 129)/(50,607,250 × 262) = - 6,528,335,250/13,259,099,500
- 118/311 = - (55,324,875 × 118)/(55,324,875 × 311) = - 6,528,335,250/17,206,036,125