Answers

Add 81/20 and 70/30

1^st number: 4 1/20, 2^nd number: 2 10/30

81/20 + 70/30 is 383/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 30 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 20 × 3 = 60,
   81/20 = 81 × 3/20 × 3 = 243/60
3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
   70/30 = 70 × 2/30 × 2 = 140/60
4. Add the two like fractions:
   243/60 + 140/60 = 243 + 140/60 = 383/60
5. So, 81/20 + 70/30 = 383/60
   In mixed form: 623/60

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