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: 1,095/85
- The prime factorizations of the numerator and denominator:
- 1,095 = 3 × 5 × 73
- 85 = 5 × 17
- 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 (1,095; 85) = 5
1,095/85 = (1,095 ÷ 5)/(85 ÷ 5) = 219/17
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
1,095/85 = (3 × 5 × 73)/(5 × 17) = ((3 × 5 × 73) ÷ 5)/((5 × 17) ÷ 5) = 219/17
The fraction: 838/97
838/97 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 838 = 2 × 419
- 97 is a prime number.
- GCF (838; 97) = 1
The fraction: 702/101
702/101 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 702 = 2 × 33 × 13
- 101 is a prime number.
- GCF (702; 101) = 1
The fraction: 256/80
- 256 = 28
- 80 = 24 × 5
- GCF (256; 80) = 24 = 16
256/80 = (256 ÷ 16)/(80 ÷ 16) = 16/5
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
256/80 = 28/(24 × 5) = (28 ÷ 24)/((24 × 5) ÷ 24) = 16/5
The fraction: 140/94
- 140 = 22 × 5 × 7
- 94 = 2 × 47
- GCF (140; 94) = 2
140/94 = (140 ÷ 2)/(94 ÷ 2) = 70/47
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
140/94 = (22 × 5 × 7)/(2 × 47) = ((22 × 5 × 7) ÷ 2)/((2 × 47) ÷ 2) = 70/47
The fraction: 128/91
128/91 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 128 = 27
- 91 = 7 × 13
- GCF (128; 91) = 1
Calculate the expanding number of each fraction:
Divide the LCM by the denominator of each fraction.
219/17 ⟶ 3,561,650,365 ÷ 17 = (5 × 7 × 13 × 17 × 47 × 97 × 101) ÷ 17 = 209,508,845
838/97 ⟶ 3,561,650,365 ÷ 97 = (5 × 7 × 13 × 17 × 47 × 97 × 101) ÷ 97 = 36,718,045
702/101 ⟶ 3,561,650,365 ÷ 101 = (5 × 7 × 13 × 17 × 47 × 97 × 101) ÷ 101 = 35,263,865
16/5 ⟶ 3,561,650,365 ÷ 5 = (5 × 7 × 13 × 17 × 47 × 97 × 101) ÷ 5 = 712,330,073
70/47 ⟶ 3,561,650,365 ÷ 47 = (5 × 7 × 13 × 17 × 47 × 97 × 101) ÷ 47 = 75,779,795
128/91 ⟶ 3,561,650,365 ÷ 91 = (5 × 7 × 13 × 17 × 47 × 97 × 101) ÷ (7 × 13) = 39,139,015
Make the denominators 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 denominator:
219/17 = (209,508,845 × 219)/(209,508,845 × 17) = 45,882,437,055/3,561,650,365
838/97 = (36,718,045 × 838)/(36,718,045 × 97) = 30,769,721,710/3,561,650,365
702/101 = (35,263,865 × 702)/(35,263,865 × 101) = 24,755,233,230/3,561,650,365
16/5 = (712,330,073 × 16)/(712,330,073 × 5) = 11,397,281,168/3,561,650,365
70/47 = (75,779,795 × 70)/(75,779,795 × 47) = 5,304,585,650/3,561,650,365
128/91 = (39,139,015 × 128)/(39,139,015 × 91) = 5,009,793,920/3,561,650,365