Solutions by everydaycalculation.com

1^{st} number: 40/42, 2^{nd} number: 1 1/20

4042 + 2120 is 841420.

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

LCM of 42 and 20 is**420**

Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,

4042 = 40 × 1042 × 10 = 400420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,

2120 = 21 × 2120 × 21 = 441420 - Add the two like fractions:

400420 + 441420 = 400 + 441420 = 841420 - So, 40/42 + 21/20 = 841/420

In mixed form: 21420

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