Solutions by everydaycalculation.com

1^{st} number: 1 1/20, 2^{nd} number: 42/50

2120 - 4250 is 21100.

- Find the least common denominator or LCM of the two denominators:

LCM of 20 and 50 is**100**

Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,

2120 = 21 × 520 × 5 = 105100 - Likewise, for the 2nd fraction, since 50 × 2 = 100,

4250 = 42 × 250 × 2 = 84100 - Subtract the two like fractions:

105100 - 84100 = 105 - 84100 = 21100

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