Answers

Add 80/42 and 2/80

1^st number: 1 38/42, 2^nd number: 2/80

80/42 + 2/80 is 1621/840.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 80 is 1680
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1680
2. For the 1st fraction, since 42 × 40 = 1680,
   80/42 = 80 × 40/42 × 40 = 3200/1680
3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
   2/80 = 2 × 21/80 × 21 = 42/1680
4. Add the two like fractions:
   3200/1680 + 42/1680 = 3200 + 42/1680 = 3242/1680
5. 3242/1680 simplified gives 1621/840
6. So, 80/42 + 2/80 = 1621/840
   In mixed form: 1781/840

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