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: 40/81
40/81 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 40 = 23 × 5
- 81 = 34
- GCF (40; 81) = 1
The fraction: 48/97
48/97 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 48 = 24 × 3
- 97 is a prime number.
- GCF (48; 97) = 1
The fraction: 40/67
40/67 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 40 = 23 × 5
- 67 is a prime number.
- GCF (40; 67) = 1
The fraction: 46/85
46/85 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 46 = 2 × 23
- 85 = 5 × 17
- GCF (46; 85) = 1
The fraction: 47/84
47/84 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 47 is a prime number.
- 84 = 22 × 3 × 7
- GCF (47; 84) = 1
The fraction: 51/76
51/76 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 51 = 3 × 17
- 76 = 22 × 19
- GCF (51; 76) = 1
The fraction: 57/84
- The prime factorizations of the numerator and denominator:
- 57 = 3 × 19
- 84 = 22 × 3 × 7
- 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 (57; 84) = 3
57/84 = (57 ÷ 3)/(84 ÷ 3) = 19/28
The fraction can also be reduced without calculating GCF; factor the numerator and denominator and cross out all the common prime factors:
57/84 = (3 × 19)/(22 × 3 × 7) = ((3 × 19) ÷ 3)/((22 × 3 × 7) ÷ 3) = 19/28
The fraction: 54/55
54/55 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors:
- 54 = 2 × 33
- 55 = 5 × 11
- GCF (54; 55) = 1
Calculate the expanding number of each fraction:
Divide the LCM by the numerator of each fraction.
40/81 ⟶ 754,192,080 ÷ 40 = (24 × 33 × 5 × 17 × 19 × 23 × 47) ÷ (23 × 5) = 18,854,802
48/97 ⟶ 754,192,080 ÷ 48 = (24 × 33 × 5 × 17 × 19 × 23 × 47) ÷ (24 × 3) = 15,712,335
40/67 ⟶ 754,192,080 ÷ 40 = (24 × 33 × 5 × 17 × 19 × 23 × 47) ÷ (23 × 5) = 18,854,802
46/85 ⟶ 754,192,080 ÷ 46 = (24 × 33 × 5 × 17 × 19 × 23 × 47) ÷ (2 × 23) = 16,395,480
47/84 ⟶ 754,192,080 ÷ 47 = (24 × 33 × 5 × 17 × 19 × 23 × 47) ÷ 47 = 16,046,640
51/76 ⟶ 754,192,080 ÷ 51 = (24 × 33 × 5 × 17 × 19 × 23 × 47) ÷ (3 × 17) = 14,788,080
19/28 ⟶ 754,192,080 ÷ 19 = (24 × 33 × 5 × 17 × 19 × 23 × 47) ÷ 19 = 39,694,320
54/55 ⟶ 754,192,080 ÷ 54 = (24 × 33 × 5 × 17 × 19 × 23 × 47) ÷ (2 × 33) = 13,966,520
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:
40/81 = (18,854,802 × 40)/(18,854,802 × 81) = 754,192,080/1,527,238,962
48/97 = (15,712,335 × 48)/(15,712,335 × 97) = 754,192,080/1,524,096,495
40/67 = (18,854,802 × 40)/(18,854,802 × 67) = 754,192,080/1,263,271,734
46/85 = (16,395,480 × 46)/(16,395,480 × 85) = 754,192,080/1,393,615,800
47/84 = (16,046,640 × 47)/(16,046,640 × 84) = 754,192,080/1,347,917,760
51/76 = (14,788,080 × 51)/(14,788,080 × 76) = 754,192,080/1,123,894,080
19/28 = (39,694,320 × 19)/(39,694,320 × 28) = 754,192,080/1,111,440,960
54/55 = (13,966,520 × 54)/(13,966,520 × 55) = 754,192,080/768,158,600