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: - 193/287
- 193/287 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 193 is a prime number.
- 287 = 7 × 41
- GCF (193; 287) = 1
The fraction: - 176/281
- 176/281 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 176 = 24 × 11
- 281 is a prime number.
- GCF (176; 281) = 1
The fraction: - 161/308
- The prime factorizations of the numerator and denominator:
- 161 = 7 × 23
- 308 = 22 × 7 × 11
- 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 (161; 308) = 7
- 161/308 = - (161 ÷ 7)/(308 ÷ 7) = - 23/44
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 161/308 = - (7 × 23)/(22 × 7 × 11) = - ((7 × 23) ÷ 7)/((22 × 7 × 11) ÷ 7) = - 23/44
The fraction: - 168/340
- 168 = 23 × 3 × 7
- 340 = 22 × 5 × 17
- GCF (168; 340) = 22 = 4
- 168/340 = - (168 ÷ 4)/(340 ÷ 4) = - 42/85
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
- 168/340 = - (23 × 3 × 7)/(22 × 5 × 17) = - ((23 × 3 × 7) ÷ 22)/((22 × 5 × 17) ÷ 22) = - 42/85
The fraction: - 183/382
- 183/382 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 183 = 3 × 61
- 382 = 2 × 191
- GCF (183; 382) = 1
Calculate the expanding number of each fraction:
Divide the LCM by the numerator of each fraction.
- 193/287 ⟶ 1,000,799,184 ÷ 193 = (24 × 3 × 7 × 11 × 23 × 61 × 193) ÷ 193 = 5,185,488
- 176/281 ⟶ 1,000,799,184 ÷ 176 = (24 × 3 × 7 × 11 × 23 × 61 × 193) ÷ (24 × 11) = 5,686,359
- 23/44 ⟶ 1,000,799,184 ÷ 23 = (24 × 3 × 7 × 11 × 23 × 61 × 193) ÷ 23 = 43,513,008
- 42/85 ⟶ 1,000,799,184 ÷ 42 = (24 × 3 × 7 × 11 × 23 × 61 × 193) ÷ (2 × 3 × 7) = 23,828,552
- 183/382 ⟶ 1,000,799,184 ÷ 183 = (24 × 3 × 7 × 11 × 23 × 61 × 193) ÷ (3 × 61) = 5,468,848
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:
- 193/287 = - (5,185,488 × 193)/(5,185,488 × 287) = - 1,000,799,184/1,488,235,056
- 176/281 = - (5,686,359 × 176)/(5,686,359 × 281) = - 1,000,799,184/1,597,866,879
- 23/44 = - (43,513,008 × 23)/(43,513,008 × 44) = - 1,000,799,184/1,914,572,352
- 42/85 = - (23,828,552 × 42)/(23,828,552 × 85) = - 1,000,799,184/2,025,426,920
- 183/382 = - (5,468,848 × 183)/(5,468,848 × 382) = - 1,000,799,184/2,089,099,936