Solutions by everydaycalculation.com

1^{st} number: 1 5/45, 2^{nd} number: 1 1/20

5045 - 2120 is 11180.

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

LCM of 45 and 20 is**180**

Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,

5045 = 50 × 445 × 4 = 200180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,

2120 = 21 × 920 × 9 = 189180 - Subtract the two like fractions:

200180 - 189180 = 200 - 189180 = 11180

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