Answers

Add 70/40 and 72/10

1^st number: 1 30/40, 2^nd number: 7 2/10

70/40 + 72/10 is 179/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 10 is 40
   
   Next, find the equivalent fraction of both fractional numbers with denominator 40
2. For the 1st fraction, since 40 × 1 = 40,
   70/40 = 70 × 1/40 × 1 = 70/40
3. Likewise, for the 2nd fraction, since 10 × 4 = 40,
   72/10 = 72 × 4/10 × 4 = 288/40
4. Add the two like fractions:
   70/40 + 288/40 = 70 + 288/40 = 358/40
5. 358/40 simplified gives 179/20
6. So, 70/40 + 72/10 = 179/20
   In mixed form: 819/20

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