Answers

Add 72/8 and 42/80

1^st number: 9 0/8, 2^nd number: 42/80

72/8 + 42/80 is 381/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 8 × 10 = 80,
   72/8 = 72 × 10/8 × 10 = 720/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   42/80 = 42 × 1/80 × 1 = 42/80
4. Add the two like fractions:
   720/80 + 42/80 = 720 + 42/80 = 762/80
5. 762/80 simplified gives 381/40
6. So, 72/8 + 42/80 = 381/40
   In mixed form: 921/40

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