Answers

Add 70/30 and 72/40

1^st number: 2 10/30, 2^nd number: 1 32/40

70/30 + 72/40 is 62/15.

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,
   72/40 = 72 × 3/40 × 3 = 216/120
4. Add the two like fractions:
   280/120 + 216/120 = 280 + 216/120 = 496/120
5. 496/120 simplified gives 62/15
6. So, 70/30 + 72/40 = 62/15
   In mixed form: 42/15

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