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: - 157/211
- 157/211 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 157 is a prime number.
- 211 is a prime number.
- GCF (157; 211) = 1
The fraction: - 145/214
- 145/214 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 145 = 5 × 29
- 214 = 2 × 107
- GCF (145; 214) = 1
The fraction: - 140/226
- The prime factorizations of the numerator and denominator:
- 140 = 22 × 5 × 7
- 226 = 2 × 113
- 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 (140; 226) = 2
- 140/226 = - (140 ÷ 2)/(226 ÷ 2) = - 70/113
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 140/226 = - (22 × 5 × 7)/(2 × 113) = - ((22 × 5 × 7) ÷ 2)/((2 × 113) ÷ 2) = - 70/113
The fraction: - 141/298
- 141/298 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 141 = 3 × 47
- 298 = 2 × 149
- GCF (141; 298) = 1
The fraction: - 139/327
- 139/327 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 139 is a prime number.
- 327 = 3 × 109
- GCF (139; 327) = 1
Calculate the expanding number of each fraction:
Divide the LCM by the numerator of each fraction.
- 157/211 ⟶ 6,246,397,290 ÷ 157 = (2 × 3 × 5 × 7 × 29 × 47 × 139 × 157) ÷ 157 = 39,785,970
- 145/214 ⟶ 6,246,397,290 ÷ 145 = (2 × 3 × 5 × 7 × 29 × 47 × 139 × 157) ÷ (5 × 29) = 43,078,602
- 70/113 ⟶ 6,246,397,290 ÷ 70 = (2 × 3 × 5 × 7 × 29 × 47 × 139 × 157) ÷ (2 × 5 × 7) = 89,234,247
- 141/298 ⟶ 6,246,397,290 ÷ 141 = (2 × 3 × 5 × 7 × 29 × 47 × 139 × 157) ÷ (3 × 47) = 44,300,690
- 139/327 ⟶ 6,246,397,290 ÷ 139 = (2 × 3 × 5 × 7 × 29 × 47 × 139 × 157) ÷ 139 = 44,938,110
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:
- 157/211 = - (39,785,970 × 157)/(39,785,970 × 211) = - 6,246,397,290/8,394,839,670
- 145/214 = - (43,078,602 × 145)/(43,078,602 × 214) = - 6,246,397,290/9,218,820,828
- 70/113 = - (89,234,247 × 70)/(89,234,247 × 113) = - 6,246,397,290/10,083,469,911
- 141/298 = - (44,300,690 × 141)/(44,300,690 × 298) = - 6,246,397,290/13,201,605,620
- 139/327 = - (44,938,110 × 139)/(44,938,110 × 327) = - 6,246,397,290/14,694,761,970