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: - 199/296
- 199/296 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 199 is a prime number.
- 296 = 23 × 37
- GCF (199; 296) = 1
The fraction: - 183/287
- 183/287 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 183 = 3 × 61
- 287 = 7 × 41
- GCF (183; 287) = 1
The fraction: - 165/318
- The prime factorizations of the numerator and denominator:
- 165 = 3 × 5 × 11
- 318 = 2 × 3 × 53
- 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 (165; 318) = 3
- 165/318 = - (165 ÷ 3)/(318 ÷ 3) = - 55/106
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 165/318 = - (3 × 5 × 11)/(2 × 3 × 53) = - ((3 × 5 × 11) ÷ 3)/((2 × 3 × 53) ÷ 3) = - 55/106
The fraction: - 172/352
- 172 = 22 × 43
- 352 = 25 × 11
- GCF (172; 352) = 22 = 4
- 172/352 = - (172 ÷ 4)/(352 ÷ 4) = - 43/88
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 172/352 = - (22 × 43)/(25 × 11) = - ((22 × 43) ÷ 22)/((25 × 11) ÷ 22) = - 43/88
The fraction: - 189/390
- 189 = 33 × 7
- 390 = 2 × 3 × 5 × 13
- GCF (189; 390) = 3
- 189/390 = - (189 ÷ 3)/(390 ÷ 3) = - 63/130
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 189/390 = - (33 × 7)/(2 × 3 × 5 × 13) = - ((33 × 7) ÷ 3)/((2 × 3 × 5 × 13) ÷ 3) = - 63/130
Calculate the expanding number of each fraction:
Divide the LCM by the numerator of each fraction.
- 199/296 ⟶ 1,808,650,305 ÷ 199 = (32 × 5 × 7 × 11 × 43 × 61 × 199) ÷ 199 = 9,088,695
- 183/287 ⟶ 1,808,650,305 ÷ 183 = (32 × 5 × 7 × 11 × 43 × 61 × 199) ÷ (3 × 61) = 9,883,335
- 55/106 ⟶ 1,808,650,305 ÷ 55 = (32 × 5 × 7 × 11 × 43 × 61 × 199) ÷ (5 × 11) = 32,884,551
- 43/88 ⟶ 1,808,650,305 ÷ 43 = (32 × 5 × 7 × 11 × 43 × 61 × 199) ÷ 43 = 42,061,635
- 63/130 ⟶ 1,808,650,305 ÷ 63 = (32 × 5 × 7 × 11 × 43 × 61 × 199) ÷ (32 × 7) = 28,708,735
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:
- 199/296 = - (9,088,695 × 199)/(9,088,695 × 296) = - 1,808,650,305/2,690,253,720
- 183/287 = - (9,883,335 × 183)/(9,883,335 × 287) = - 1,808,650,305/2,836,517,145
- 55/106 = - (32,884,551 × 55)/(32,884,551 × 106) = - 1,808,650,305/3,485,762,406
- 43/88 = - (42,061,635 × 43)/(42,061,635 × 88) = - 1,808,650,305/3,701,423,880
- 63/130 = - (28,708,735 × 63)/(28,708,735 × 130) = - 1,808,650,305/3,732,135,550