Answers

Add 81/42 and 10/60

1^st number: 1 39/42, 2^nd number: 10/60

81/42 + 10/60 is 44/21.

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,
   81/42 = 81 × 10/42 × 10 = 810/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   10/60 = 10 × 7/60 × 7 = 70/420
4. Add the two like fractions:
   810/420 + 70/420 = 810 + 70/420 = 880/420
5. 880/420 simplified gives 44/21
6. So, 81/42 + 10/60 = 44/21
   In mixed form: 22/21

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