Answers

Add 70/30 and 81/40

1^st number: 2 10/30, 2^nd number: 2 1/40

70/30 + 81/40 is 523/120.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 40 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 30 × 4 = 120,
   70/30 = 70 × 4/30 × 4 = 280/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   81/40 = 81 × 3/40 × 3 = 243/120
4. Add the two like fractions:
   280/120 + 243/120 = 280 + 243/120 = 523/120
5. So, 70/30 + 81/40 = 523/120
   In mixed form: 443/120

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