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: - 111/137
- 111/137 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 111 = 3 × 37
- 137 is a prime number.
- GCF (111; 137) = 1
The fraction: - 107/158
- 107/158 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 107 is a prime number.
- 158 = 2 × 79
- GCF (107; 158) = 1
The fraction: - 95/162
- 95/162 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 95 = 5 × 19
- 162 = 2 × 34
- GCF (95; 162) = 1
The fraction: - 64/194
- The prime factorizations of the numerator and denominator:
- 64 = 26
- 194 = 2 × 97
- 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 (64; 194) = 2
- 64/194 = - (64 ÷ 2)/(194 ÷ 2) = - 32/97
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 64/194 = - 26/(2 × 97) = - (26 ÷ 2)/((2 × 97) ÷ 2) = - 32/97
The fraction: - 91/249
- 91/249 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 91 = 7 × 13
- 249 = 3 × 83
- GCF (91; 249) = 1
Calculate the expanding number of each fraction:
Divide the LCM by the numerator of each fraction.
- 111/137 ⟶ 3,285,653,280 ÷ 111 = (25 × 3 × 5 × 7 × 13 × 19 × 37 × 107) ÷ (3 × 37) = 29,600,480
- 107/158 ⟶ 3,285,653,280 ÷ 107 = (25 × 3 × 5 × 7 × 13 × 19 × 37 × 107) ÷ 107 = 30,707,040
- 95/162 ⟶ 3,285,653,280 ÷ 95 = (25 × 3 × 5 × 7 × 13 × 19 × 37 × 107) ÷ (5 × 19) = 34,585,824
- 32/97 ⟶ 3,285,653,280 ÷ 32 = (25 × 3 × 5 × 7 × 13 × 19 × 37 × 107) ÷ 25 = 102,676,665
- 91/249 ⟶ 3,285,653,280 ÷ 91 = (25 × 3 × 5 × 7 × 13 × 19 × 37 × 107) ÷ (7 × 13) = 36,106,080
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:
- 111/137 = - (29,600,480 × 111)/(29,600,480 × 137) = - 3,285,653,280/4,055,265,760
- 107/158 = - (30,707,040 × 107)/(30,707,040 × 158) = - 3,285,653,280/4,851,712,320
- 95/162 = - (34,585,824 × 95)/(34,585,824 × 162) = - 3,285,653,280/5,602,903,488
- 32/97 = - (102,676,665 × 32)/(102,676,665 × 97) = - 3,285,653,280/9,959,636,505
- 91/249 = - (36,106,080 × 91)/(36,106,080 × 249) = - 3,285,653,280/8,990,413,920