Answers

Add 63/42 and 80/60

1^st number: 1 21/42, 2^nd number: 1 20/60

63/42 + 80/60 is 17/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 42 × 10 = 420,
   63/42 = 63 × 10/42 × 10 = 630/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   80/60 = 80 × 7/60 × 7 = 560/420
4. Add the two like fractions:
   630/420 + 560/420 = 630 + 560/420 = 1190/420
5. 1190/420 simplified gives 17/6
6. So, 63/42 + 80/60 = 17/6
   In mixed form: 25/6

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