Answers

Add 81/42 and 8/60

1^st number: 1 39/42, 2^nd number: 8/60

81/42 + 8/60 is 433/210.

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,
   8/60 = 8 × 7/60 × 7 = 56/420
4. Add the two like fractions:
   810/420 + 56/420 = 810 + 56/420 = 866/420
5. 866/420 simplified gives 433/210
6. So, 81/42 + 8/60 = 433/210
   In mixed form: 213/210

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