Calculate the expanding number of each fraction:
Divide the LCM by the denominator of each fraction.
83/50 : 18,317,930,400 ÷ 50 = (25 × 32 × 52 × 7 × 11 × 19 × 37 × 47) ÷ (2 × 52) = 366,358,608
74/45 : 18,317,930,400 ÷ 45 = (25 × 32 × 52 × 7 × 11 × 19 × 37 × 47) ÷ (32 × 5) = 407,065,120
113/57 : 18,317,930,400 ÷ 57 = (25 × 32 × 52 × 7 × 11 × 19 × 37 × 47) ÷ (3 × 19) = 321,367,200
75/37 : 18,317,930,400 ÷ 37 = (25 × 32 × 52 × 7 × 11 × 19 × 37 × 47) ÷ 37 = 495,079,200
2 : 18,317,930,400 ÷ 1 = (25 × 32 × 52 × 7 × 11 × 19 × 37 × 47) ÷ 1 = 18,317,930,400
129/37 : 18,317,930,400 ÷ 37 = (25 × 32 × 52 × 7 × 11 × 19 × 37 × 47) ÷ 37 = 495,079,200
179/28 : 18,317,930,400 ÷ 28 = (25 × 32 × 52 × 7 × 11 × 19 × 37 × 47) ÷ (22 × 7) = 654,211,800
72/11 : 18,317,930,400 ÷ 11 = (25 × 32 × 52 × 7 × 11 × 19 × 37 × 47) ÷ 11 = 1,665,266,400
519/32 : 18,317,930,400 ÷ 32 = (25 × 32 × 52 × 7 × 11 × 19 × 37 × 47) ÷ 25 = 572,435,325
836/47 : 18,317,930,400 ÷ 47 = (25 × 32 × 52 × 7 × 11 × 19 × 37 × 47) ÷ 47 = 389,743,200
257/11 : 18,317,930,400 ÷ 11 = (25 × 32 × 52 × 7 × 11 × 19 × 37 × 47) ÷ 11 = 1,665,266,400
1,005/37 : 18,317,930,400 ÷ 37 = (25 × 32 × 52 × 7 × 11 × 19 × 37 × 47) ÷ 37 = 495,079,200
Make the fractions' denominators the same:
Expand each fraction: multiply both its numerator and denominator by its corresponding expanding number, calculated at the step 2, above.
This way all the fractions will have the same denominator:
83/50 = (366,358,608 × 83)/(366,358,608 × 50) = 30,407,764,464/18,317,930,400
74/45 = (407,065,120 × 74)/(407,065,120 × 45) = 30,122,818,880/18,317,930,400
113/57 = (321,367,200 × 113)/(321,367,200 × 57) = 36,314,493,600/18,317,930,400
75/37 = (495,079,200 × 75)/(495,079,200 × 37) = 37,130,940,000/18,317,930,400
2/1 = (18,317,930,400 × 2)/(18,317,930,400 × 1) = 36,635,860,800/18,317,930,400
129/37 = (495,079,200 × 129)/(495,079,200 × 37) = 63,865,216,800/18,317,930,400
179/28 = (654,211,800 × 179)/(654,211,800 × 28) = 117,103,912,200/18,317,930,400
72/11 = (1,665,266,400 × 72)/(1,665,266,400 × 11) = 119,899,180,800/18,317,930,400
519/32 = (572,435,325 × 519)/(572,435,325 × 32) = 297,093,933,675/18,317,930,400
836/47 = (389,743,200 × 836)/(389,743,200 × 47) = 325,825,315,200/18,317,930,400
257/11 = (1,665,266,400 × 257)/(1,665,266,400 × 11) = 427,973,464,800/18,317,930,400
1,005/37 = (495,079,200 × 1,005)/(495,079,200 × 37) = 497,554,596,000/18,317,930,400