Answers

Add 63/42 and 2/80

1^st number: 1 21/42, 2^nd number: 2/80

63/42 + 2/80 is 61/40.

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,
   63/42 = 63 × 40/42 × 40 = 2520/1680
3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
   2/80 = 2 × 21/80 × 21 = 42/1680
4. Add the two like fractions:
   2520/1680 + 42/1680 = 2520 + 42/1680 = 2562/1680
5. 2562/1680 simplified gives 61/40
6. So, 63/42 + 2/80 = 61/40
   In mixed form: 121/40

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